CNOR Perioperative Nursing Certification Exam — Questions and Answers

Question 1: A patient with a documented latex allergy is scheduled for surgery. Which nursing intervention is MOST critical?

Using only powder-free latex gloves
Premedication with diphenhydramine only
Scheduling the case as the last of the day
Scheduling the case as the first of the day in a latex-safe environment (Correct answer)

Correct answer: Scheduling the case as the first of the day in a latex-safe environment

Scheduling the latex-allergic patient first minimizes latex particle accumulation in the OR air from prior cases, reducing anaphylaxis risk.

Question 2: What is the purpose of a sterilization load control number (lot control)?

To enable traceability of sterilized items to a specific cycle for recall purposes (Correct answer)
To identify which biological indicator test kit was used
To satisfy billing requirements for sterile supply departments
To track the number of times an instrument has been reprocessed

Correct answer: To enable traceability of sterilized items to a specific cycle for recall purposes

Load control numbers enable traceability so that if sterilization failure is detected, all items from that cycle can be identified and recalled.

Question 3: Which factor would cause a pre-vacuum steam sterilizer to produce a failed Bowie-Dick test?

Air leaks in the chamber door gasket (Correct answer)
Overloading with wrapped packs
Using non-woven polypropylene wrap
Excessive steam pressure above set point

Correct answer: Air leaks in the chamber door gasket

Air leaks allow residual air to remain in the chamber, creating pockets that block steam penetration and cause non-uniform color change on the Bowie-Dick test sheet.

Question 4: Which electrosurgical waveform mode delivers a continuous, unmodulated current primarily used for cutting tissue?

Cut mode (Correct answer)
Blend mode
Coagulation mode
Bipolar mode

Correct answer: Cut mode

Cut mode delivers a continuous, uninterrupted sinusoidal waveform that rapidly heats tissue cells to cause vaporization and cutting.

Question 5: In the prone position, which abdominal positioning frame or roll placement is critical to prevent increased intra-abdominal pressure?

Rolls placed directly under the abdomen
Single roll under the umbilicus only
Foam wedge under the thorax only
Chest and iliac crest support that frees the abdomen (Correct answer)

Correct answer: Chest and iliac crest support that frees the abdomen

Supports must be placed at the chest and iliac crests so the abdomen hangs free, reducing IVC compression and epidural venous bleeding.

Question 6: Which sterilization method uses the lowest temperature and is therefore safest for heat-sensitive electronics?

Hydrogen peroxide plasma (Correct answer)
Flash steam at 132°C
Gravity displacement steam at 121°C
Dry heat at 160°C

Correct answer: Hydrogen peroxide plasma

Hydrogen peroxide gas plasma sterilizes at approximately 50°C, making it suitable for heat- and moisture-sensitive devices.

Question 7: AORN's position on mandatory overtime for perioperative nurses emphasizes that it:

Poses risks to patient safety and nurse well-being and should be minimized (Correct answer)
Is required during emergencies and elective cases equally
Has no impact on surgical outcomes
Is an acceptable staffing solution for routine shortages

Correct answer: Poses risks to patient safety and nurse well-being and should be minimized

AORN's position statement highlights that mandatory overtime increases error risk and nurse fatigue, compromising patient safety.

Question 8: Which assessment finding in a post-operative patient who was in lithotomy position most suggests compartment syndrome of the lower leg?

Mild ankle swelling
Redness over the tibial crest
Pain out of proportion to the procedure and firmness of the calf (Correct answer)
Numbness in the great toe only

Correct answer: Pain out of proportion to the procedure and firmness of the calf

Disproportionate pain combined with tense compartment firmness are hallmark early signs of compartment syndrome requiring immediate evaluation.

Question 9: When a patient refuses a blood transfusion for religious reasons before surgery, the perioperative nurse should:

Convince the patient to accept the transfusion for their own safety
Document and communicate the refusal to the surgical team and ensure it is respected throughout the perioperative period (Correct answer)
Administer the transfusion if the surgeon deems it medically necessary
Dismiss the refusal if the patient is under anesthesia

Correct answer: Document and communicate the refusal to the surgical team and ensure it is respected throughout the perioperative period

The patient's advance directive or refusal must be documented, communicated to the team, and honored throughout all phases of care as a matter of patient autonomy.

Question 10: Which of the following is the correct treatment for opioid-induced respiratory depression in the PACU?

Neostigmine 2.5 mg IV with glycopyrrolate
Physostigmine 1 mg IV
Flumazenil 0.2 mg IV
Naloxone 0.04–0.4 mg IV titrated to effect (Correct answer)

Correct answer: Naloxone 0.04–0.4 mg IV titrated to effect

Naloxone, an opioid antagonist, is titrated in small doses IV to reverse respiratory depression while minimizing abrupt reversal of analgesia.

Question 11: According to AORN guidelines, where is the most appropriate site for placing the dispersive electrode?

Over a bony prominence closest to the surgical site
Over a scar or skin fold for better adhesion
On the patient's chest, regardless of surgical site location
On a well-vascularized, large muscle mass closest to the operative site (Correct answer)

Correct answer: On a well-vascularized, large muscle mass closest to the operative site

AORN recommends placing the dispersive electrode on a large, well-vascularized muscle mass as close to the operative site as possible to optimize current return and minimize resistance.

Question 12: How should a broken instrument or needle fragment be handled during counting?

The surgeon decides whether to count fragments
All pieces must be accounted for and kept together so the count reflects the complete item (Correct answer)
Only the largest piece needs to be counted
The broken item is discarded and not counted

Correct answer: All pieces must be accounted for and kept together so the count reflects the complete item

AORN requires that all fragments of a broken instrument or needle be retained and counted together so the total matches the original count.

Question 13: When documenting the surgical scrub technician's name on the intraoperative record, the perioperative nurse is fulfilling which primary standard?

Accountability by identifying all personnel present and their roles during the procedure (Correct answer)
Satisfying a physician credentialing requirement
Billing for the technician's services
Verifying the technician's licensure status

Correct answer: Accountability by identifying all personnel present and their roles during the procedure

Identifying all surgical team members by name and role fulfills accountability standards and supports investigation of any adverse events.

Question 14: In the context of biofilm formation on surgical instruments, which statement is most accurate?

Biofilms form only on implantable devices, not reusable instruments
Once a biofilm forms, the instrument must be discarded
Biofilms are easily removed by standard high-level disinfection alone
Biofilms protect microorganisms from disinfection and can cause device-related infections (Correct answer)

Correct answer: Biofilms protect microorganisms from disinfection and can cause device-related infections

Biofilms create a protective matrix that dramatically increases microbial resistance to disinfectants and antibiotics, making thorough mechanical cleaning before disinfection/sterilization critical.

Question 15: What is the primary reason OR doors should remain closed during a surgical procedure?

To keep the room temperature stable for patient comfort
To comply with fire code regulations during procedures
To prevent noise from disturbing the surgical team
To maintain positive pressure differential and prevent contamination from corridor air (Correct answer)

Correct answer: To maintain positive pressure differential and prevent contamination from corridor air

OR positive pressure keeps unfiltered corridor air from entering; opening doors disrupts airflow patterns, allows unfiltered air ingress, and increases particle counts at the surgical site.

Question 16: Which principle underlies the concept of 'first intention' wound healing relevant to perioperative patient safety?

Wounds heal fastest when packed with saline-moistened gauze
Approximated wound edges in a clean environment heal with minimal scar tissue (Correct answer)
Wound healing is independent of intraoperative tissue handling technique
Secondary closure should be performed immediately after debridement

Correct answer: Approximated wound edges in a clean environment heal with minimal scar tissue

Primary (first intention) healing occurs when wound edges are cleanly approximated, minimizing dead space and microbial contamination, which is directly influenced by careful intraoperative tissue handling.

Question 17: AORN's Standards of Perioperative Nursing Practice are best described as:

Authoritative statements that define the responsibilities of perioperative nurses (Correct answer)
Legally binding federal regulations for OR settings
Optional guidelines used only for Magnet designation
Institutional policies specific to each hospital

Correct answer: Authoritative statements that define the responsibilities of perioperative nurses

AORN's standards are authoritative, evidence-based statements that define the expected competencies and responsibilities of perioperative nurses.

Question 18: Which monitoring parameter is considered the gold standard for confirming correct endotracheal tube placement?

End-tidal CO2 (ETCO2) capnography (Correct answer)
Chest rise visualization
Pulse oximetry
Chest auscultation

Correct answer: End-tidal CO2 (ETCO2) capnography

Continuous ETCO2 waveform capnography is the gold standard for confirming and monitoring endotracheal tube placement throughout the procedure.

Question 19: What is the perioperative nurse's documentation obligation when an unlabeled container of medication is found on the sterile field?

Leave it on the field and ask the scrub technician to identify it later
Label it based on the most likely drug and continue the procedure
Remove the container from the sterile field, document the event, and notify the surgeon and charge nurse (Correct answer)
Document it only in the anesthesia record

Correct answer: Remove the container from the sterile field, document the event, and notify the surgeon and charge nurse

Unlabeled medications on the sterile field must be removed immediately, and the incident documented with notification to the surgeon and charge nurse per AORN safe medication practice standards.

Question 20: When additional sponges or instruments are added to the sterile field during a procedure, what must occur?

They must be counted only at the closing count
They may be added without counting if the surgeon authorizes it
They must be counted and added to the count record immediately (Correct answer)
They should be held off the field until the final count

Correct answer: They must be counted and added to the count record immediately

Any item added to the sterile field mid-procedure must be immediately counted and documented to maintain an accurate running count.

Question 21: Which of the following BEST describes the nurse's documentation role during an intraoperative cardiac arrest?

Document only the outcome (survived/expired)
Designate a recorder to document resuscitation events in real time, then complete the record immediately after (Correct answer)
Defer all documentation until after the resuscitation is complete
Have the anesthesiologist document all events

Correct answer: Designate a recorder to document resuscitation events in real time, then complete the record immediately after

AORN recommends designating a recorder during resuscitation to capture interventions in real time, with the record completed in full immediately after stabilization.

Question 22: What is the primary purpose of using a sterile drape over the patient during surgery?

To provide warmth and comfort for the patient during the procedure
To reduce radiation exposure during intraoperative imaging
To create and maintain a sterile field around the operative site (Correct answer)
To prevent the surgical team from direct patient skin contact

Correct answer: To create and maintain a sterile field around the operative site

Sterile drapes isolate the operative site from surrounding non-sterile areas, establishing and maintaining a sterile field to reduce the risk of surgical site infection.

Question 23: What is the primary goal of maintaining sterile technique in the operating room?

To protect the surgical team from exposure to bodily fluids
To prevent contamination of the surgical site (Correct answer)
To minimize the need for postoperative antibiotics
To enhance the speed of the surgical procedure

Correct answer: To prevent contamination of the surgical site

The primary goal of maintaining sterile technique in the operating room is to prevent the introduction of microorganisms into the patient's surgical wound. By minimizing the risk of contamination, sterile technique significantly reduces the likelihood of surgical site infections (SSIs), which can lead to serious complications and prolonged recovery for the patient.

Question 24: The Spaulding Classification System categorizes medical devices based on which criterion?

Manufacturer's country of origin
Material composition of the device
Cost of reprocessing
Risk of infection based on intended use (Correct answer)

Correct answer: Risk of infection based on intended use

Spaulding's classification (critical, semi-critical, non-critical) categorizes devices by the infection risk associated with how they contact patients, determining the required level of reprocessing.

Question 25: A patient develops a fever of 38.5°C on postoperative day 3 after laparoscopic appendectomy. Which SSI classification would apply if wound erythema and purulent drainage are found at the port site?

Deep incisional SSI
Healthcare-associated pneumonia
Superficial incisional SSI (Correct answer)
Organ/space SSI

Correct answer: Superficial incisional SSI

Superficial incisional SSI involves only skin and subcutaneous tissue at the incision site, presenting within 30 days with signs like purulent drainage, erythema, or swelling.

Question 26: When should the initial surgical count be performed according to AORN recommended practices?

After the first incision is made
After the patient is draped and positioned
At any time before wound closure
Before the procedure begins, before incision (Correct answer)

Correct answer: Before the procedure begins, before incision

AORN recommends the initial count be performed before the procedure begins and before the incision to establish a baseline of all countable items.

Question 27: Which parameter is NOT a critical variable in hydrogen peroxide plasma sterilization?

Exposure time
Humidity level inside the chamber (Correct answer)
Chamber pressure
H2O2 concentration

Correct answer: Humidity level inside the chamber

Unlike steam sterilization, H2O2 plasma processes require low moisture content — humidity in the chamber is controlled and minimized, not a variable affecting efficacy.

Question 28: Which hand hygiene product is recommended by AORN as superior for routine decontamination when hands are not visibly soiled in the perioperative setting?

Iodine-based antiseptic wipes
Alcohol-based hand rub (ABHR) with at least 60% ethanol or isopropanol (Correct answer)
Plain soap and water for at least 60 seconds
Chlorhexidine gluconate scrub solution

Correct answer: Alcohol-based hand rub (ABHR) with at least 60% ethanol or isopropanol

Alcohol-based hand rubs are more effective than soap and water against most pathogens and are recommended for routine hand hygiene when hands are visibly clean.

Question 29: Which statement about late entries in the perioperative nursing record is CORRECT?

Late entries should be backdated to the time the event occurred
A late entry should be labeled as such with the current date, time, and reason for the delay (Correct answer)
Late entries are not permitted under any circumstances
Late entries require co-signature from the operating surgeon

Correct answer: A late entry should be labeled as such with the current date, time, and reason for the delay

A late entry must be clearly identified with the actual date and time of documentation and the reason for the delay to maintain record integrity.

Question 30: When a surgeon requests a procedure that the perioperative nurse believes is inappropriate for a patient, the nurse should FIRST:

Follow the surgeon's direction without question
Refuse to participate and leave the OR
Voice the concern directly to the surgeon and escalate through the chain of command if unresolved (Correct answer)
Document the objection and proceed anyway

Correct answer: Voice the concern directly to the surgeon and escalate through the chain of command if unresolved

The nurse should use direct, assertive communication with the surgeon first, then escalate through proper channels if the concern is not addressed.

Question 31: What does informed consent require?

Getting any signature on a form
Family approval only
Explaining the procedure, risks, benefits, and alternatives to the patient (Correct answer)
Verbal agreement only

Correct answer: Explaining the procedure, risks, benefits, and alternatives to the patient

Informed consent requires that patients understand the proposed procedure, its risks and benefits, alternatives, and have the opportunity to ask questions before agreeing.

Question 32: What are standard precautions in healthcare?

Treating all blood and body fluids as potentially infectious (Correct answer)
Using masks during surgery only
Hand washing after patient contact only
Only wearing gloves for known infections

Correct answer: Treating all blood and body fluids as potentially infectious

Standard precautions assume all blood and body fluids are potentially infectious, requiring consistent use of barriers (gloves, gowns, masks) and hand hygiene for all patient interactions.

Question 33: Before transferring a medication to the sterile field, the circulating nurse should perform which safety action?

Ask the surgeon to confirm the medication verbally
Verify drug name, concentration, and expiration with the scrub person (Correct answer)
Review the patient's home medication list
Check the anesthesia provider's drug log

Correct answer: Verify drug name, concentration, and expiration with the scrub person

The circulator and scrub person must both verify drug name, concentration, and expiration date before the medication is transferred to the sterile field.

Question 34: Which phase of wound healing involves fibroblast proliferation and collagen deposition?

Proliferative phase (Correct answer)
Inflammatory phase
Remodeling phase
Hemostasis

Correct answer: Proliferative phase

During the proliferative phase, fibroblasts migrate to the wound, synthesize collagen, and form granulation tissue to fill the defect.

Question 35: Which factor most significantly contributes to surgical site infections (SSIs)?

Patient’s fasting period
Type of anesthesia used
Duration of the surgery (Correct answer)
The patient’s age

Correct answer: Duration of the surgery

The duration of surgery is a significant risk factor for surgical site infections (SSIs) because prolonged exposure of tissues to the environment and increased manipulation can lead to greater bacterial contamination. Longer procedures also correlate with increased patient stress and potential for compromised immune response, further elevating infection risk.

Question 36: What is the proper procedure for hand hygiene before performing a surgical scrub?

Wash hands and forearms with antimicrobial soap (Correct answer)
Use an alcohol-based hand sanitizer
Soak hands in a sterile solution
Wash hands with water only

Correct answer: Wash hands and forearms with antimicrobial soap

Before performing a surgical scrub, the proper procedure for hand hygiene involves thoroughly washing hands and forearms with an antimicrobial soap for a specified duration. This process mechanically removes transient microorganisms and reduces resident flora, preparing the skin for the application of sterile gloves and minimizing the risk of infection.

Question 37: Which principle guides the placement of items on the sterile field?

Only the top surface of a draped table is considered sterile (Correct answer)
Sterile fields can be left unattended for up to 30 minutes
Items may be placed anywhere if they came from a sterile container
Items handed to the scrub person are considered contaminated

Correct answer: Only the top surface of a draped table is considered sterile

Only the top horizontal surface of a sterile draped table is sterile; edges and sides are considered contaminated.

Question 38: Which behavior by a scrubbed team member violates aseptic technique?

Keeping hands above the level of the sterile drape
Passing instruments within the sterile field with controlled movements
Turning their back to the sterile field to retrieve a dropped instrument (Correct answer)
Changing positions with another scrubbed team member face-to-face

Correct answer: Turning their back to the sterile field to retrieve a dropped instrument

Turning one's back to the sterile field violates aseptic technique because it removes the team member's ability to monitor and protect the sterile area.

Question 39: What is the window level and window width on CT images?

Patient positioning parameters
Settings that control the brightness and contrast of displayed images (Correct answer)
Physical measurements of the CT scanner
Scan speed controls

Correct answer: Settings that control the brightness and contrast of displayed images

Window level sets the center brightness (what HU appears as middle gray) and window width controls contrast range (how many HUs span from black to white).

Question 40: Which of the following is the recommended method for verifying instrument sterility at the point of use?

Confirming the item was autoclaved within 24 hours
Checking the expiration date on the package
Smelling the package for chemical odor
Inspecting the chemical indicator inside the package (Correct answer)

Correct answer: Inspecting the chemical indicator inside the package

An internal chemical indicator changes color when sterilization parameters have been met, providing point-of-use verification of sterility.

Question 41: What does the term 'balanced anesthesia' refer to?

Using only one drug to achieve all anesthetic goals
Combining multiple agents to achieve analgesia, amnesia, muscle relaxation, and unconsciousness (Correct answer)
Balancing anesthetic depth with patient blood pressure
Using equal doses of opioids and benzodiazepines

Correct answer: Combining multiple agents to achieve analgesia, amnesia, muscle relaxation, and unconsciousness

Balanced anesthesia uses a combination of drugs—each targeting a specific component—to minimize side effects while achieving all desired anesthetic effects.

Question 42: Which of the following patients requires placement in a negative-pressure isolation room for perioperative care?

A patient with vancomycin-resistant Enterococcus (VRE)
A patient with active pulmonary tuberculosis (Correct answer)
A patient with MRSA wound infection
A patient with Clostridioides difficile colitis

Correct answer: A patient with active pulmonary tuberculosis

Active pulmonary TB requires airborne precautions, including a negative-pressure room, because Mycobacterium tuberculosis is transmitted via airborne droplet nuclei that remain suspended in air.

Question 43: When positioning a morbidly obese patient supine, which modification is most important to prevent respiratory compromise under anesthesia?

Placing sand bags on the abdomen
Placing the patient in slight reverse Trendelenburg to reduce diaphragmatic splinting (Correct answer)
Keeping the patient supine flat throughout the entire case
Using a flat table without any adjustment

Correct answer: Placing the patient in slight reverse Trendelenburg to reduce diaphragmatic splinting

Slight reverse Trendelenburg shifts abdominal mass caudally, reducing diaphragmatic pressure and improving FRC and ventilation in obese patients.

Question 44: The circulator notes that the surgical count is incorrect before skin closure. What is the FIRST action?

Document the discrepancy and notify the charge nurse after the case
Close the incision and obtain an X-ray
Notify the surgeon and perform a methodical recount (Correct answer)
Ask the scrub person to recount alone

Correct answer: Notify the surgeon and perform a methodical recount

An incorrect count requires immediate notification of the surgeon and a systematic recount before closure to locate the missing item.

Question 45: A new policy requires perioperative nurses to use a specific surgical hand antisepsis product. A nurse believes the old product was more effective. The MOST professional response is to:

Continue using the old product and not inform anyone
Refuse to use the new product until personally convinced it is superior
Follow the new policy while submitting evidence-based concerns through the appropriate policy review process (Correct answer)
Ask the surgeon to intercede on their behalf

Correct answer: Follow the new policy while submitting evidence-based concerns through the appropriate policy review process

Professional nurses comply with current policy while using appropriate channels—such as shared governance or policy committees—to raise evidence-based concerns.

Question 46: The AORN-recommended minimum number of personnel required to perform a surgical count is:

Two qualified individuals, typically the scrub person and circulating nurse (Correct answer)
The surgeon and scrub person
One scrub person only
Three nurses plus the surgical technologist

Correct answer: Two qualified individuals, typically the scrub person and circulating nurse

AORN guidelines require two qualified individuals—usually the scrub person and circulating nurse—to perform counts concurrently and audibly.

Question 47: Which statement about immediate-use steam sterilization (IUSS) is consistent with AORN guidelines?

IUSS should be used only when there is insufficient time for standard sterilization and must be fully documented (Correct answer)
IUSS is an acceptable routine sterilization method for all surgical instruments
IUSS cycles do not require biological indicator testing
IUSS-processed items may be stored wrapped for up to 4 hours

Correct answer: IUSS should be used only when there is insufficient time for standard sterilization and must be fully documented

AORN supports IUSS only for urgent clinical need when no other option exists, requiring full documentation and root cause analysis to prevent recurrence.

Question 48: According to AORN's recommended practices, who is responsible for documenting the type, model, and placement site of the dispersive electrode in the perioperative record?

The anesthesia provider, as they manage patient monitoring
The biomedical engineer who set up the equipment
The surgeon, as it is a clinical decision
The perioperative (circulating) nurse (Correct answer)

Correct answer: The perioperative (circulating) nurse

AORN requires the perioperative circulating nurse to document electrosurgical unit use, including dispersive electrode type, lot number, placement site, and skin condition assessment, as part of the intraoperative nursing record.

Question 49: Why is patient positioning significant during surgery?

To provide comfort for the surgical team
To prevent injury to the patient during the procedure (Correct answer)
To reduce the risk of the surgical site becoming contaminated
To improve the visibility of the surgical site

Correct answer: To prevent injury to the patient during the procedure

Proper patient positioning during surgery is critical to prevent various injuries, including nerve damage, pressure ulcers, musculoskeletal strain, and circulatory compromise. The surgical team carefully positions the patient to ensure optimal access to the surgical site while simultaneously protecting vulnerable body parts and maintaining physiological stability throughout the procedure. This meticulous attention to positioning is a vital aspect of patient safety.

Question 50: What is a nosocomial infection?

A childhood disease
A respiratory infection
An infection acquired in a healthcare facility (Correct answer)
A genetic condition

Correct answer: An infection acquired in a healthcare facility

Nosocomial (healthcare-associated) infections are acquired during the course of receiving medical treatment in a healthcare facility, not present at admission.

Question 51: What is the primary function of a self-retaining retractor during surgery?

To cut and retract tissue simultaneously
To measure tissue thickness during retraction
To maintain tissue exposure without requiring continuous manual holding (Correct answer)
To provide the surgeon with additional grip on slippery tissue

Correct answer: To maintain tissue exposure without requiring continuous manual holding

Self-retaining retractors maintain tissue exposure on their own, freeing the surgical team's hands for other tasks.

Question 52: During handoff from the intraoperative team to the PACU nurse, which information is most critical to communicate?

Number of personnel who scrubbed the case
Procedure performed, anesthesia type, intraoperative medications, estimated blood loss, and any complications (Correct answer)
The patient's insurance provider
The surgeon's preferred closure technique

Correct answer: Procedure performed, anesthesia type, intraoperative medications, estimated blood loss, and any complications

The PACU nurse requires comprehensive intraoperative data to safely monitor and manage the patient during the immediate recovery phase.

Question 53: What is HIPAA?

A type of insurance plan
A hospital ranking system
A medical diagnosis code
Health Insurance Portability and Accountability Act — protects patient privacy (Correct answer)

Correct answer: Health Insurance Portability and Accountability Act — protects patient privacy

HIPAA establishes national standards for protecting patient health information, ensuring privacy and security of medical records.

Question 54: What is the recommended technique for perioperative skin antisepsis before applying a sterile dressing or performing wound care?

Wipe from the periphery inward toward the wound center
Saturate the entire wound bed with antiseptic solution
Wipe from the wound edge outward in concentric circles (Correct answer)
Apply antiseptic using a back-and-forth scrubbing motion

Correct answer: Wipe from the wound edge outward in concentric circles

Antiseptic preparation should begin at the cleanest point (wound or incision site) and move outward to prevent dragging contamination into the wound.

Question 55: A perioperative nurse is asked to be a charge nurse for the first time. Which competency is MOST essential for this new role?

The ability to perform all scrub and circulating duties simultaneously
Leadership skills including conflict resolution and staff coordination (Correct answer)
Exclusive focus on the most complex cases of the day
Proficiency in every surgical specialty

Correct answer: Leadership skills including conflict resolution and staff coordination

Charge nurses must lead and coordinate the team, making leadership and conflict resolution skills the most critical competencies for the role.

Question 56: Which statement correctly describes the concept of 'surgical conscience' in perioperative nursing?

An internal commitment to uphold sterile technique even when not observed (Correct answer)
Documenting any breaks in technique without necessarily correcting them
Following aseptic technique only when supervisors are present to observe
Prioritizing speed and efficiency over strict adherence to aseptic principles

Correct answer: An internal commitment to uphold sterile technique even when not observed

Surgical conscience is the personal and professional obligation to report and correct any break in aseptic technique regardless of observation by others.

Question 57: What type of injury can result when the dispersive electrode is improperly placed or has inadequate skin contact during monopolar electrosurgery?

Electromagnetic interference with monitoring equipment
Electrosurgical burn at the dispersive electrode site (Correct answer)
Nerve stimulation injury at the active electrode site
Pressure injury at the dispersive electrode site

Correct answer: Electrosurgical burn at the dispersive electrode site

Poor contact or improper placement of the dispersive electrode concentrates current density at the pad site, generating sufficient heat to cause a full-thickness burn.

Question 58: What is the nurse's role in facilitating communication within the surgical team?

Promoting clear, respectful, and effective communication during the procedure (Correct answer)
Mediating conflicts between team members post-procedure
Ensuring only the surgeon speaks during critical moments
Allowing team members to manage communication without interference

Correct answer: Promoting clear, respectful, and effective communication during the procedure

The nurse plays a crucial role in facilitating communication within the surgical team by ensuring information flows clearly, respectfully, and effectively among all members. This includes relaying critical patient information, anticipating needs, and speaking up about concerns, which is vital for patient safety and efficient procedure execution.

Question 59: Why is accurate documentation critical in perioperative nursing?

To facilitate billing and reimbursement for the procedure
To create a comprehensive record of the patient’s care (Correct answer)
To provide legal protection for the hospital only
To ensure the surgeon’s preferences are followed in future cases

Correct answer: To create a comprehensive record of the patient’s care

Accurate documentation in perioperative nursing is critical because it creates a comprehensive, legal, and chronological record of the patient's entire surgical experience. This detailed record supports continuity of care, facilitates communication among healthcare providers, aids in quality improvement, and serves as a vital reference for future treatment and legal purposes.

Question 60: According to AORN, what is the recommended preoperative skin antiseptic of choice for most surgical sites when no contraindication exists?

10% povidone-iodine paint only
Iodophor-alcohol combination scrub
Plain soap and water preoperative shower only
Chlorhexidine gluconate with isopropyl alcohol (CHG-alcohol) (Correct answer)

Correct answer: Chlorhexidine gluconate with isopropyl alcohol (CHG-alcohol)

CHG-alcohol (chlorhexidine gluconate in isopropyl alcohol) is the preferred preoperative skin antiseptic due to its broad-spectrum efficacy, residual activity, and superiority in SSI reduction trials.

Question 61: When using a powered air-purifying respirator (PAPR) in the OR, the perioperative nurse must ensure:

The battery is charged and the filter is within its service life before each use (Correct answer)
The blower unit is stored inside the sterile field
The filter is changed after every shift regardless of use
The device is fit-tested annually like an N95

Correct answer: The battery is charged and the filter is within its service life before each use

PAPRs require a charged battery and an unexpired filter to provide adequate respiratory protection during each use.

Question 62: What does CT stand for in medical imaging?

Clinical Therapy
Computed Tomography (Correct answer)
Cardiac Testing
Central Treatment

Correct answer: Computed Tomography

CT (Computed Tomography) uses X-ray technology and computer processing to create detailed cross-sectional images of the body.

Question 63: How should a perioperative nurse handle a situation where the surgical team is about to begin a procedure on the wrong site?

Quietly inform the surgeon after the procedure starts
Ask the patient postoperatively to confirm the correct site
Document the issue and proceed with the surgery
Stop the procedure and call for a surgical timeout (Correct answer)

Correct answer: Stop the procedure and call for a surgical timeout

If a perioperative nurse identifies that the surgical team is about to operate on the wrong site, their immediate and critical ethical responsibility is to stop the procedure. This triggers a "surgical timeout," a mandatory pause to verify the correct patient, site, and procedure, preventing serious medical errors and ensuring patient safety.

Question 64: In the PACU, a patient exhibits stridor, use of accessory muscles, and SpO2 of 88%. What is the most likely cause?

Pulmonary embolism
Shivering from hypothermia
Laryngospasm or upper airway obstruction (Correct answer)
Pain-related tachypnea

Correct answer: Laryngospasm or upper airway obstruction

Stridor with accessory muscle use and low SpO2 indicates laryngospasm or airway obstruction, a life-threatening postoperative emergency.

Question 65: A scrub technician notices the surgical drapes have ignited near the surgical light. The FIRST action should be:

Remove the burning material from the patient if safe to do so (Correct answer)
Apply a CO2 fire extinguisher immediately
Flood the area with saline or water
Activate the fire alarm and leave the room

Correct answer: Remove the burning material from the patient if safe to do so

Removing burning material from the patient is the first priority to prevent patient injury before other fire suppression steps.

Question 66: When the perioperative nurse performs the hand-off report to the PACU nurse, which documentation action is required per AORN standards?

A verbal summary with no written confirmation
Only the anesthesia record needs to accompany the patient
Completion of a structured written or electronic hand-off that includes procedure performed, pertinent intraoperative events, medications given, and patient status (Correct answer)
The PACU nurse reviews the chart independently; no hand-off documentation is required

Correct answer: Completion of a structured written or electronic hand-off that includes procedure performed, pertinent intraoperative events, medications given, and patient status

AORN standards require a structured, documented hand-off that transfers essential intraoperative information to ensure continuity and patient safety in PACU.

Question 67: Which drug used in anesthesia is classified as a dissociative anesthetic and provides analgesia, sedation, and amnesia while maintaining airway reflexes?

Propofol
Dexmedetomidine
Etomidate
Ketamine (Correct answer)

Correct answer: Ketamine

Ketamine produces a dissociative state with preserved airway reflexes and provides analgesia, making it useful in hemodynamically unstable patients and pediatric cases.

Question 68: Eye injury (corneal abrasion or pressure ischemia) during prone positioning is prevented primarily by:

Keeping eyes taped and placing foam headrest so orbits are pressure-free (Correct answer)
Using standard foam donut rings under the eyes
Turning the head to one side throughout the case
Applying eye drops every 30 minutes only

Correct answer: Keeping eyes taped and placing foam headrest so orbits are pressure-free

Eyes must be taped closed and the head positioned on a frame or pillow that suspends the forehead and chin so no pressure contacts the orbits.

Question 69: What is the recommended action if a surgical instrument is dropped during a procedure?

Rinse the instrument with sterile water and reuse it
Continue using the instrument if it appears clean
Place the instrument back on the sterile field
Remove the instrument and replace it with a sterile one (Correct answer)

Correct answer: Remove the instrument and replace it with a sterile one

If a surgical instrument is dropped during a procedure, it is immediately considered contaminated and must be removed from the sterile field. The correct action is to replace it with a new, sterile instrument to maintain aseptic technique and prevent the introduction of pathogens into the surgical site, thereby safeguarding patient safety.

Question 70: At which count should the perioperative nurse announce count results to the surgical team?

Only at the final skin closure count
At every count, including initial, closing, and final counts (Correct answer)
Only when a discrepancy is found
Only at the surgeon's request

Correct answer: At every count, including initial, closing, and final counts

AORN recommends that count results be announced to the entire surgical team at every count to maintain shared awareness of count status.

Question 71: Which characteristic defines a 'never event' in the perioperative context according to the National Quality Forum (NQF)?

A medication error that does not result in patient harm
An adverse event that occurred despite adherence to best practice guidelines
A serious, largely preventable patient safety event that should never occur in a healthcare setting (Correct answer)
Any intraoperative complication requiring unplanned return to the OR

Correct answer: A serious, largely preventable patient safety event that should never occur in a healthcare setting

NQF 'never events' (Serious Reportable Events) are serious, largely preventable occurrences—such as wrong-site surgery or retained surgical items—that signal fundamental failures in safety systems.

Question 72: What is the primary rationale for maintaining OR ambient temperature between 68°F and 75°F (20°C–24°C)?

To reduce staff fatigue during long procedures
To comply with OSHA ventilation standards for chemical exposure
To balance infection control needs with patient normothermia requirements (Correct answer)
To prevent condensation on sterile instrument trays

Correct answer: To balance infection control needs with patient normothermia requirements

OR temperature ranges are set to limit microbial growth risk (lower temps) while also considering the patient's thermoregulatory needs and preventing hypothermia.

Question 73: How should a scrub person handle an instrument dropped onto the sterile field but not off the field?

Wipe it with a sterile sponge soaked in normal saline and return it to use
Pass it to the circulator for resterilization
Continue using it, as it remained on the sterile field
Remove it from the sterile field and place it in the contaminated area (Correct answer)

Correct answer: Remove it from the sterile field and place it in the contaminated area

Any instrument whose sterility is questionable should be removed from the sterile field, as contamination risk cannot be confirmed visually.

Question 74: When documenting implant information in the intraoperative record, which data element is required by AORN and The Joint Commission?

The implant lot number and manufacturer name (Correct answer)
The surgeon's implant preference card number
The cost of the implant
The scrub technician who opened the implant

Correct answer: The implant lot number and manufacturer name

Lot number and manufacturer are required for implant traceability so patients can be notified in the event of a recall.

Question 75: Which sterilization parameter is most critical in gravity displacement steam sterilization at 121°C?

Number of biological indicators used
Exposure time (minimum 15–30 minutes) (Correct answer)
Drying time
Load weight

Correct answer: Exposure time (minimum 15–30 minutes)

At 121°C gravity displacement cycles, adequate exposure time (typically 15–30 minutes) is essential because steam penetration is slower than in pre-vacuum cycles.

Question 76: Which personal protective equipment (PPE) is required when handling a patient with Clostridioides difficile (C. diff) in the perioperative setting?

N95 respirator and face shield
Powered air-purifying respirator (PAPR)
Gown and gloves with contact precautions (Correct answer)
Surgical mask and eye protection only

Correct answer: Gown and gloves with contact precautions

C. difficile requires contact precautions — gown and gloves — because it spreads via the fecal-oral route and spores are not killed by alcohol-based hand rubs.

Question 77: A scrub person notices a significant increase in blood saturating wound dressings in the immediate postoperative period. What is the FIRST action the perioperative nurse should take?

Apply additional dressing layers and document
Remove the dressing and inspect the wound
Notify the surgeon immediately (Correct answer)
Administer a topical thrombin agent

Correct answer: Notify the surgeon immediately

Sudden hemorrhage may indicate a surgical complication requiring immediate surgeon assessment and possible return to the OR.

Question 78: A patient in the PACU reports severe pain (9/10) after a laparotomy. Vital signs are stable. What is the priority nursing action?

Assess pain quality and administer prescribed analgesic per protocol (Correct answer)
Reassure the patient and recheck in 30 minutes
Notify the surgeon immediately
Apply ice packs to the abdomen

Correct answer: Assess pain quality and administer prescribed analgesic per protocol

Uncontrolled postoperative pain impairs recovery and must be addressed promptly through assessment and evidence-based analgesic administration.

Question 79: Which positioning device is specifically recommended by AORN to protect the ulnar nerve at the elbow?

Arm board angled above 90 degrees
Tight elbow wrap with elastic bandage
Gel pad over the medial epicondyle (Correct answer)
Foam padding under the lateral forearm only

Correct answer: Gel pad over the medial epicondyle

AORN recommends padding the medial epicondyle with gel or foam to protect the ulnar nerve from direct pressure.

Question 80: Which documentation element is most critical when reporting an intraoperative retained surgical item event?

The charge nurse's assessment of team performance
Only the final corrected count after the item was located
An objective, factual account of count results, actions taken, and provider notifications (Correct answer)
A subjective explanation of why the count discrepancy occurred

Correct answer: An objective, factual account of count results, actions taken, and provider notifications

Factual, objective documentation including all count results, discrepancy discovery time, actions taken (radiograph, surgeon notification), and outcome is required for risk management and regulatory reporting.

Question 81: During wound closure, the surgeon asks for a monofilament absorbable suture with a slow absorption rate appropriate for fascia. Which suture material BEST fits this description?

Polyglactin 910 (Vicryl)
Polydioxanone (PDS) (Correct answer)
Polyglycolic acid (Dexon)
Plain catgut

Correct answer: Polydioxanone (PDS)

Polydioxanone (PDS) is a monofilament absorbable suture that retains tensile strength for approximately 6 weeks and is completely absorbed by 6 months, making it ideal for fascial closure.

Question 82: According to the AORN fire risk assessment triad, which three elements must coexist to produce a surgical fire?

Flammable prep solution, open flame, and nitrous oxide
Laser energy, dry tissue, and supplemental oxygen above 30%
Ignition source, oxygen-enriched environment, and combustible fuel (Correct answer)
Electrical equipment, draping material, and inadequate ventilation

Correct answer: Ignition source, oxygen-enriched environment, and combustible fuel

The fire triad requires an ignition source (electrosurgery, laser), an oxidizer (oxygen or nitrous oxide), and a fuel (drapes, prep solutions, hair) — removing any one element prevents fire.

Question 83: A circulator notices a small tear in a sterile gown cuff during a procedure. What is the correct response?

Notify the scrub and change the gown immediately (Correct answer)
Double-glove over the existing glove to compensate
Continue if gloves are intact, since gloves are the primary barrier
Cover the tear with sterile tape and continue

Correct answer: Notify the scrub and change the gown immediately

A compromised gown must be replaced immediately because it no longer provides an effective sterile barrier.

Question 84: During a mass casualty event, the perioperative team activates the hospital incident command system (HICS). Which role is responsible for overall management of the OR during the event?

The surgical team leader of the first incoming case
The charge nurse acting as OR resource coordinator (Correct answer)
The anesthesia attending
The circulating nurse of the trauma OR

Correct answer: The charge nurse acting as OR resource coordinator

In HICS, the charge nurse or designee typically functions as OR resource coordinator, managing personnel and room assignments during mass casualty events.

Question 85: The primary purpose of peer review in the perioperative nursing department is to:

Evaluate practice against professional standards to drive improvement (Correct answer)
Assign disciplinary actions to underperforming nurses
Replace the annual performance review process
Identify nurses for promotion

Correct answer: Evaluate practice against professional standards to drive improvement

Peer review is an evidence-based process where nurses evaluate colleagues' practice against professional standards to identify growth areas and improve care.

Question 86: According to AORN guidelines, smoke plume generated during electrosurgery contains which hazardous component that poses a known carcinogenic risk?

Carbon dioxide and water vapor only
Viable cellular material, toxic chemicals, and ultrafine particles (Correct answer)
Aerosolized blood and saline only
Nitrogen and hydrogen sulfide only

Correct answer: Viable cellular material, toxic chemicals, and ultrafine particles

Surgical smoke plume contains viable cellular material, mutagenic/carcinogenic chemicals, and ultrafine particles that can penetrate deep into the lungs.

Question 87: What is 'direct coupling' in laparoscopic electrosurgery, and why is it dangerous?

The ESU is directly connected to the return electrode, bypassing safety circuits
Two monopolar instruments are used simultaneously, doubling the electrical output
Current travels directly through the trocar without tissue contact
The active electrode accidentally makes contact with another metal instrument, conducting current to unintended tissue (Correct answer)

Correct answer: The active electrode accidentally makes contact with another metal instrument, conducting current to unintended tissue

Direct coupling occurs when the energized active electrode touches another metal instrument inside the body cavity, transferring current to that instrument and potentially burning adjacent tissue outside the surgeon's view.

Question 88: Which action should the perioperative nurse take when inspecting reusable electrosurgical instruments before a case?

Inspect insulation for cracks, pinholes, or discoloration and discard instruments with any defects (Correct answer)
Soak instruments in high-level disinfectant for 20 minutes regardless of prior sterilization
Test each instrument by activating the ESU at full power and touching the tip to a metal basin
Verify instrument function only by reviewing the sterilization log

Correct answer: Inspect insulation for cracks, pinholes, or discoloration and discard instruments with any defects

Visual and tactile inspection of reusable electrode insulation for any defects is essential, as even small insulation breaches can cause capacitive coupling or direct current leakage during the procedure.

Question 89: An AORN perioperative nurse serves as the patient advocate during surgery primarily by:

Directing the surgical team on operative technique
Documenting the procedure for billing purposes
Managing the sterile instrument count alone
Ensuring the patient's rights and preferences are upheld when they cannot speak for themselves (Correct answer)

Correct answer: Ensuring the patient's rights and preferences are upheld when they cannot speak for themselves

Patient advocacy is a core perioperative nursing role, especially since patients under anesthesia cannot advocate for themselves.

Question 90: Which condition is a contraindication to the use of succinylcholine due to the risk of life-threatening hyperkalemia?

Controlled hypertension
Denervation injuries or extensive burns present for more than 24–48 hours (Correct answer)
History of PONV
Recent appendectomy

Correct answer: Denervation injuries or extensive burns present for more than 24–48 hours

Up-regulation of extrajunctional acetylcholine receptors following denervation or burn injury causes massive potassium efflux when succinylcholine is administered.

Question 91: When performing terminal cleaning of an OR after a case involving an infectious patient, which sequence is correct?

Overhead equipment and lights first, then horizontal surfaces, then floors last (Correct answer)
Floors first, then horizontal surfaces, then lights and overhead equipment
Walls first, then lights, then floors and equipment simultaneously
All surfaces simultaneously with different team members using the same product

Correct answer: Overhead equipment and lights first, then horizontal surfaces, then floors last

Terminal cleaning follows a top-down approach — starting with overhead equipment and lights to prevent re-contaminating already-cleaned lower surfaces as debris falls.

Question 92: Which intervention is most effective in preventing venous access-related bloodstream infections in surgical patients?

Applying povidone-iodine to all IV catheter sites daily
Using maximal sterile barrier precautions during central line insertion (Correct answer)
Limiting IV line use to less than 48 hours total
Replacing IV tubing every 24 hours regardless of type

Correct answer: Using maximal sterile barrier precautions during central line insertion

Maximal sterile barrier precautions (sterile gown, gloves, cap, mask, and full-body drape) during central venous catheter insertion are the most evidence-based intervention to prevent CLABSI.

Question 93: What distinguishes bipolar electrosurgery from monopolar electrosurgery?

Bipolar mode generates a continuous waveform while monopolar uses interrupted pulses
Bipolar uses higher voltage to achieve faster tissue cutting
In bipolar electrosurgery, current travels only between the two tips of the instrument, eliminating need for a dispersive electrode (Correct answer)
Bipolar electrosurgery uses a separate dispersive electrode on each limb

Correct answer: In bipolar electrosurgery, current travels only between the two tips of the instrument, eliminating need for a dispersive electrode

In bipolar electrosurgery, current passes only between the two tips of the forceps, confining the electrical effect to a very small area and eliminating the need for a dispersive electrode.

Question 94: Which describes the correct handling of sterile items near the edges of a sterile field?

Only the center 50% of the drape is considered truly sterile
The entire drape surface is sterile if sealed packages were used
Edges are sterile as long as they remain above the table level
A one-inch border around the drape edge is considered non-sterile (Correct answer)

Correct answer: A one-inch border around the drape edge is considered non-sterile

AORN defines a one-inch (approximately 2.5 cm) border at the edges of a sterile drape as non-sterile due to contamination risk from handling and proximity to non-sterile surfaces.

Question 95: Which electrosurgical unit (ESU) complication is specifically related to improper dispersive electrode pad placement?

Ventricular fibrillation
Alternate site burns (Correct answer)
Air embolism
Hypothermia

Correct answer: Alternate site burns

An improperly placed dispersive electrode concentrates current at an alternate contact site, causing burns away from the surgical field.

Question 96: What is the primary advantage of CT over conventional X-ray?

CT is cheaper
CT uses no radiation
CT provides cross-sectional images with superior soft tissue contrast (Correct answer)
CT takes less time

Correct answer: CT provides cross-sectional images with superior soft tissue contrast

CT provides detailed cross-sectional images with much better soft tissue contrast resolution than conventional X-rays, allowing visualization of subtle differences between tissues.

Question 97: Why is continuing education important in Wound Management?

It is not important after certification
To stay current with evolving standards and practices (Correct answer)
Only for re-certification requirements
To network only

Correct answer: To stay current with evolving standards and practices

Continuing education keeps professionals updated with the latest developments, standards, and best practices in their field.

Question 98: When performing surgical hand antisepsis with an alcohol-based surgical hand rub, which action is correct?

Apply per manufacturer's instructions until hands and forearms are dry (Correct answer)
Rinse with sterile water after application
Apply only to fingertips and nail beds
Apply for 15 seconds and proceed to gloving

Correct answer: Apply per manufacturer's instructions until hands and forearms are dry

Alcohol-based surgical hand rubs must be applied to hands and forearms following the manufacturer's directions and allowed to dry completely before donning sterile gloves.

Question 99: Which reversal agent is used to reverse the effects of benzodiazepines administered during procedural sedation?

Flumazenil (Correct answer)
Sugammadex
Naloxone
Neostigmine

Correct answer: Flumazenil

Flumazenil competitively antagonizes benzodiazepine receptors and is used to reverse benzodiazepine-induced sedation.

Question 100: During a robotic-assisted procedure, the patient is placed in steep Trendelenburg for 4 hours. Which complication should the perioperative nurse most closely monitor for postoperatively?

Corneal abrasion from eye pressure in steep Trendelenburg
Brachial plexus injury from shoulder braces
Facial and airway edema due to prolonged dependent positioning (Correct answer)
Hypothermia due to prolonged exposure to OR temperature

Correct answer: Facial and airway edema due to prolonged dependent positioning

Prolonged steep Trendelenburg causes cephalad fluid shift leading to facial, conjunctival, and pharyngeal edema, which can compromise the airway upon extubation.

Question 101: Which action by the circulating nurse correctly supports the sterile field during surgery?

Reach over the sterile drape to adjust the surgical light position
Wipe down the sterile back table with a hospital-grade disinfectant wipe
Open sterile supplies using proper technique and present them to the scrub (Correct answer)
Adjust sterile drapes that have shifted during patient positioning

Correct answer: Open sterile supplies using proper technique and present them to the scrub

The circulator opens sterile supplies using aseptic technique and presents them to the scrub without contaminating the sterile field.

Question 102: During a fire in the OR, the correct sequence of the RACE acronym is:

Rescue, Activate, Contain, Extinguish/Evacuate (Correct answer)
Report, Alarm, Close, Exit
Remove, Activate, Confine, Evacuate
Rescue, Alert, Contain, Extinguish

Correct answer: Rescue, Activate, Contain, Extinguish/Evacuate

RACE stands for Rescue (patients in immediate danger), Activate (pull alarm/call 911), Contain (close doors), Extinguish or Evacuate.

Question 103: A flexible endoscope used for bronchoscopy is classified as which Spaulding category, and what level of reprocessing is required?

Non-critical — intermediate-level disinfection
Semi-critical — high-level disinfection minimum (Correct answer)
Critical — high-level disinfection acceptable
Critical — sterilization required

Correct answer: Semi-critical — high-level disinfection minimum

Flexible endoscopes contacting mucous membranes are semi-critical devices requiring at minimum high-level disinfection, though sterilization is preferred when feasible.

Question 104: Low-temperature sterilization using ozone (O3) works primarily through which mechanism?

Oxidation of cellular components and enzymes (Correct answer)
Disruption of cell membrane lipids via surfactant action
Protein denaturation through heat
Alkylation of microbial DNA

Correct answer: Oxidation of cellular components and enzymes

Ozone sterilizes by oxidizing essential cellular structures including enzymes, proteins, and lipids, destroying microbial viability.

Question 105: According to AORN guidelines, when should antimicrobial prophylaxis be administered before a surgical procedure?

Within 30-60 minutes before incision (Correct answer)
At the time of anesthesia induction only
2 hours before incision
Immediately after the patient is positioned

Correct answer: Within 30-60 minutes before incision

AORN and SCIP guidelines recommend administering prophylactic antibiotics within 30-60 minutes before surgical incision to ensure adequate tissue levels.

Question 106: What is the purpose of the Aldrete Scoring System used in the PACU?

Assessing intraoperative blood loss
Evaluating patient readiness for discharge from Phase I recovery (Correct answer)
Documenting anesthesia drug dosages
Measuring surgical wound healing

Correct answer: Evaluating patient readiness for discharge from Phase I recovery

The Aldrete Score assesses activity, respiration, circulation, consciousness, and oxygen saturation to determine readiness for Phase I PACU discharge.

Question 107: A perioperative nurse who identifies a conflict of interest—such as a financial relationship with a vendor—should:

Keep it private as long as it does not affect immediate patient care
Consult only with colleagues, not administration
Disclose it to the appropriate institutional authority and recuse from related decisions (Correct answer)
Continue in the role since personal relationships are separate from professional duties

Correct answer: Disclose it to the appropriate institutional authority and recuse from related decisions

Professional integrity requires transparent disclosure of conflicts of interest so that institutional processes can ensure unbiased decision-making.

Question 108: Which document outlines the scope of practice specifically for perioperative nurses?

The American Nurses Association Code of Ethics only
CMS Conditions of Participation
The Joint Commission Accreditation Manual
AORN's Perioperative Nursing Data Set (PNDS) (Correct answer)

Correct answer: AORN's Perioperative Nursing Data Set (PNDS)

The PNDS is AORN's standardized nursing language that defines perioperative nursing practice and patient outcomes.

Question 109: Which action best ensures patient safety during the intraoperative phase?

Verifying the patient's identity and surgical site before the procedure (Correct answer)
Conducting all procedures without a surgical timeout
Allowing visitors in the operating room for emotional support
Delegating patient positioning entirely to anesthesia staff

Correct answer: Verifying the patient's identity and surgical site before the procedure

Verifying the patient's identity and the correct surgical site, often performed during a 'surgical timeout,' is a paramount safety protocol to prevent wrong-patient or wrong-site surgery. This critical step ensures the entire surgical team is aligned on the procedure details immediately before incision. It significantly reduces the risk of severe errors and is a cornerstone of patient safety in the operating room.

Question 110: Which factor most directly increases a surgical patient's risk for pressure injury during an extended procedure?

Prolonged immobility combined with reduced tissue perfusion on bony prominences (Correct answer)
Use of general anesthesia
Patient age under 30
Use of absorbable sutures

Correct answer: Prolonged immobility combined with reduced tissue perfusion on bony prominences

Immobility during surgery combined with compromised perfusion concentrates pressure on bony prominences, leading to tissue ischemia and pressure injury.

Question 111: During a case, a visitor observing in the OR sneezes near the sterile field without a mask. What action should be taken?

Document the event and notify the surgeon after the case is complete
Continue the procedure if the visitor is more than 3 feet from the field
Stop and assess the field; consider it contaminated and re-establish if necessary (Correct answer)
Apply a mask to the visitor and continue without interrupting the procedure

Correct answer: Stop and assess the field; consider it contaminated and re-establish if necessary

A sneeze near the sterile field introduces airborne microorganisms; the field must be assessed and re-established if contamination is suspected.

Question 112: In the Trendelenburg position, pulmonary compliance decreases primarily because:

The diaphragm is displaced cephalad by abdominal contents (Correct answer)
Blood pools in the lung bases
Tidal volume automatically decreases
The patient shivers from head-down cooling

Correct answer: The diaphragm is displaced cephalad by abdominal contents

Head-down tilt shifts abdominal viscera toward the diaphragm, restricting its downward movement and reducing lung compliance and tidal volume.

Question 113: A perioperative nurse discovers an unresponsive patient in the preoperative holding area. After calling for help, the next immediate action is:

Page the surgeon and anesthesiologist to respond
Initiate CPR and retrieve the AED (Correct answer)
Obtain IV access and prepare medications
Transport the patient to the OR immediately

Correct answer: Initiate CPR and retrieve the AED

After activating the emergency response, beginning CPR and deploying the AED are the immediate actions to address cardiac arrest.

Question 114: Which statement correctly describes the difference between disinfection and sterilization?

Both processes achieve the same sterility assurance level when performed correctly
Disinfection is used for implants; sterilization is used for surfaces
Disinfection eliminates all microbial life including spores; sterilization does not
Sterilization destroys all forms of microbial life including spores; disinfection does not reliably kill spores (Correct answer)

Correct answer: Sterilization destroys all forms of microbial life including spores; disinfection does not reliably kill spores

Sterilization achieves a sterility assurance level (SAL) of 10⁻⁶ by destroying all microbial life including highly resistant spores, while disinfection (even high-level) does not reliably eliminate all spore forms.

Question 115: What is the mechanism of action of neuromuscular blocking agents (NMBAs) classified as non-depolarizing?

They inhibit acetylcholinesterase at the synapse
They block sodium channels in motor neurons
They stimulate acetylcholine receptors causing sustained depolarization
They competitively block acetylcholine at the neuromuscular junction without causing depolarization (Correct answer)

Correct answer: They competitively block acetylcholine at the neuromuscular junction without causing depolarization

Non-depolarizing NMBAs competitively antagonize acetylcholine at nicotinic receptors, preventing muscle contraction without causing initial fasciculations.

Question 116: What does the Return Electrode Monitoring (REM) system do during electrosurgical procedures?

Prevents the ESU from activating unless the dispersive electrode is applied
Monitors the frequency output of the ESU generator continuously
Detects changes in impedance at the dispersive electrode and alarms when contact is inadequate (Correct answer)
Records the total energy delivered during the surgical case

Correct answer: Detects changes in impedance at the dispersive electrode and alarms when contact is inadequate

The REM system continuously measures impedance at the dispersive electrode site and triggers an alarm if contact becomes inadequate, preventing burn injury before it occurs.

Question 117: What type of instrument is a Bookwalter retractor classified as?

Wound protector
Hand-held retractor
Self-retaining ring retractor system (Correct answer)
Tissue grasper

Correct answer: Self-retaining ring retractor system

The Bookwalter is a self-retaining ring retractor system that attaches to the OR table and holds multiple retractor blades without manual assistance.

Question 118: Which criterion determines if a sterile package is safe to use during a case?

The sterilization date, integrity of packaging, and storage conditions are all acceptable (Correct answer)
The package was sterilized within the past 30 days regardless of storage conditions
The package passes a visual check for holes but has no required expiration date
The surgeon approves use based on clinical urgency, overriding standard checks

Correct answer: The sterilization date, integrity of packaging, and storage conditions are all acceptable

AORN's event-related sterility concept holds that sterility is maintained as long as packaging integrity is intact and storage conditions are appropriate, alongside confirming proper sterilization.

Question 119: When responding to an intraoperative anaphylactic reaction, which medication is the first-line treatment?

Diphenhydramine 50 mg IV
Hydrocortisone 100 mg IV
Epinephrine 0.3–0.5 mg IM or IV (Correct answer)
Methylprednisolone 125 mg IV

Correct answer: Epinephrine 0.3–0.5 mg IM or IV

Epinephrine is the first-line treatment for anaphylaxis due to its rapid reversal of bronchospasm, vasodilation, and urticaria.

Question 120: When two scrubbed team members need to pass each other in the OR, which method maintains aseptic technique?

They pass back-to-back keeping both away from the sterile field
One passes behind the other with back to the sterile field
They face each other while passing to monitor the sterile field (Correct answer)
One steps off the sterile platform while the other passes

Correct answer: They face each other while passing to monitor the sterile field

Scrubbed team members should pass each other face-to-face to ensure both can monitor the sterile field and avoid accidental contamination.

Question 121: Which documentation element is REQUIRED by AORN standards for every surgical patient related to positioning?

Surgeon's preferred position only
A brief note that patient was positioned per surgeon request
Intraoperative vital signs only
Position used, support devices, padding locations, skin condition pre and post, and any repositioning events (Correct answer)

Correct answer: Position used, support devices, padding locations, skin condition pre and post, and any repositioning events

AORN standards mandate comprehensive positioning documentation including position, devices, padding, skin assessment before and after, and any intraoperative changes.

Question 122: What term is used to describe a surgical sponge, instrument, or device unintentionally left inside a patient after surgery?

Wrong-site foreign body
Surgical never event artifact
Retained surgical item (RSI) (Correct answer)
Intraoperative retained object

Correct answer: Retained surgical item (RSI)

A retained surgical item (RSI) is the standardized term for any item unintentionally left inside a patient after a surgical procedure.

Question 123: Which patient factor MOST significantly impairs wound healing by reducing tissue oxygen delivery?

BMI of 27
Age over 65
Tobacco smoking (Correct answer)
Mild anemia (Hgb 10 g/dL)

Correct answer: Tobacco smoking

Tobacco smoking causes vasoconstriction and carboxyhemoglobin formation, significantly reducing tissue oxygen tension and impairing all phases of wound healing.

Question 124: Which is the correct sequence for positioning a patient into prone position safely?

Induce anesthesia supine, secure airway, then log-roll prone with coordinated team (Correct answer)
Induce prone, then intubate with fiberoptic scope
Place patient prone before induction for airway safety
Position the bed first, then transfer while awake

Correct answer: Induce anesthesia supine, secure airway, then log-roll prone with coordinated team

Patients are anesthetized and the airway secured supine; the team then uses a coordinated log-roll to place the patient prone while protecting the airway.

Question 125: What is the primary responsibility of the circulating nurse during a surgical procedure?

Administering anesthesia to the patient
Assisting the surgeon with sterile instruments
Monitoring and documenting the patient’s status (Correct answer)
Closing the surgical incision after the procedure

Correct answer: Monitoring and documenting the patient’s status

The circulating nurse's primary responsibility during a surgical procedure is to manage the overall environment of the operating room and advocate for the patient. This includes monitoring the patient's physiological status, ensuring patient safety, managing non-sterile supplies, and meticulously documenting all aspects of care, while maintaining communication with the sterile team.

Question 126: A patient with severe kyphosis is being positioned supine. The BEST initial accommodation is to:

Assess spine curvature pre-operatively and use custom padding to maintain anatomical alignment (Correct answer)
Avoid supine position entirely for all kyphotic patients
Force the patient flat and add extra padding post-induction
Place a sandbag under the lumbar spine

Correct answer: Assess spine curvature pre-operatively and use custom padding to maintain anatomical alignment

Pre-operative assessment of the curvature guides individualized padding that maintains the patient's natural spinal alignment without force.

Question 127: Which study approach is most effective for Anesthesia Basics material?

Passive re-reading of notes
Studying for very long sessions without breaks
Highlighting all text
Active recall with practice questions (Correct answer)

Correct answer: Active recall with practice questions

Active recall through practice questions is the most effective study method, as it strengthens memory retrieval pathways.

Question 128: What hand hygiene product is preferred by AORN for routine decontamination before and after patient contact in the perioperative environment?

Chlorhexidine scrub for all perioperative staff
Antimicrobial soap for every hand hygiene opportunity
Plain soap and water for all situations
Alcohol-based hand rub (ABHR) when hands are not visibly soiled (Correct answer)

Correct answer: Alcohol-based hand rub (ABHR) when hands are not visibly soiled

ABHR is preferred over soap and water for most hand hygiene moments because it is more effective against most pathogens and less damaging to skin, except when hands are visibly soiled or after C. diff contact.

Question 129: What is the recommended minimum free air space around packages in a steam sterilizer load?

Packs must be separated by exactly 1 inch on all sides
Items may be stacked tightly if chamber pressure is increased
No spacing required if items are wrapped
Items should be loosely arranged with space between packs (Correct answer)

Correct answer: Items should be loosely arranged with space between packs

AORN guidelines require loose arrangement with space between packs to allow adequate steam penetration and air removal.

Question 130: What is the most effective way to prevent healthcare-associated infections?

Proper hand hygiene (Correct answer)
Wearing gloves at all times
Cleaning the floor
Taking antibiotics

Correct answer: Proper hand hygiene

Hand hygiene (washing with soap and water or using alcohol-based hand rub) is the single most effective measure for preventing the spread of infections in healthcare settings.

Question 131: Which ethical principle is upheld when a perioperative nurse obtains informed consent verification before a procedure begins?

Fidelity
Beneficence
Justice
Autonomy (Correct answer)

Correct answer: Autonomy

Autonomy respects the patient's right to make informed decisions about their own care, which informed consent verification supports.

Question 132: During a procedure, the sterile field is inadvertently left unattended for 15 minutes. What should happen?

Document the event and continue if the patient's safety allows
The field is considered potentially compromised and must be re-established (Correct answer)
Resume the procedure if no one entered the room during that time
Cover the field with a sterile towel and resume after confirming no contamination

Correct answer: The field is considered potentially compromised and must be re-established

An unmonitored sterile field is considered potentially contaminated and must be re-established to ensure patient safety.

Question 133: What is the significance of the 'five rights' of medication administration in the perioperative setting?

They apply only to medications given by the anesthesia team
They are optional guidelines for experienced OR nurses
They replace the need for independent double-checks
They provide a baseline safety check for every medication given (Correct answer)

Correct answer: They provide a baseline safety check for every medication given

The five rights (right patient, drug, dose, route, time) form a foundational safety check that perioperative nurses apply to every medication administration.

Question 134: What is the significance of standardizing sponge pack sizes (e.g., packs of 5 or 10) in the OR?

Standardized pack sizes reduce counting errors by making it easier to verify quantities quickly (Correct answer)
They allow faster scrubbing of instruments
They are required by the Joint Commission, not AORN
They reduce the cost of sponges

Correct answer: Standardized pack sizes reduce counting errors by making it easier to verify quantities quickly

Standardized packaging allows the team to account for sponges in predictable, verifiable increments, significantly reducing miscounts and improving efficiency.

Question 135: What is the correct method for decontaminating instruments with lumens (e.g., suction tips) at the point of use?

Flush the lumen with sterile water to remove gross soil (Correct answer)
Soak in a basin of saline solution until processing
Cap the lumen end and set aside for sterile processing
Wipe the exterior only with a damp sponge

Correct answer: Flush the lumen with sterile water to remove gross soil

Flushing lumens with sterile water at the point of use removes gross soil and prevents biofilm formation before formal decontamination.

Question 136: A patient is scheduled for a bowel resection. Which type of anesthesia monitoring is MOST important to assess intraoperatively for fluid balance?

Bispectral index (BIS)
Urine output via Foley catheter (Correct answer)
Pulse oximetry
End-tidal CO2

Correct answer: Urine output via Foley catheter

Urine output via Foley catheter provides real-time assessment of renal perfusion and fluid balance during major abdominal surgery.

Question 137: What is the correct order for donning PPE?

Mask, gloves, gown, eye protection
Any order is acceptable
Gown, mask, eye protection, gloves (Correct answer)
Gloves, gown, mask, eye protection

Correct answer: Gown, mask, eye protection, gloves

The correct donning sequence is gown first, then mask/respirator, eye protection/face shield, and gloves last. This prevents contamination during application.

Question 138: During a sterile dressing change, the nurse accidentally contaminates a sterile glove. What is the correct action?

Wipe the contaminated area with a sterile gauze before continuing
Remove the contaminated glove and replace it with a new sterile glove (Correct answer)
Apply a second sterile glove over the contaminated one
Continue the dressing change carefully, avoiding the contaminated area

Correct answer: Remove the contaminated glove and replace it with a new sterile glove

A contaminated sterile item must be removed and replaced; double-gloving over contamination does not restore sterility and violates aseptic technique.

Question 139: What is a Hounsfield unit?

A unit of radiation dose
A quantitative measurement of tissue density on CT images (Correct answer)
A measure of scan speed
A unit of image resolution

Correct answer: A quantitative measurement of tissue density on CT images

Hounsfield units (HU) measure tissue density on CT, with water at 0 HU, air at -1000 HU, and dense bone at +1000 HU or higher.

Question 140: What is the correct position of a hemostat when it is handed to a surgeon?

Ratchet open, tips pointing toward the surgeon's dominant hand (Correct answer)
Ratchet open, ring handles toward the surgeon's palm
Ratchet closed, tips pointing away from the surgeon
Ratchet locked on the first tooth, tips up

Correct answer: Ratchet open, tips pointing toward the surgeon's dominant hand

A hemostat is passed ratchet open with tips pointing toward the surgeon's dominant hand so it is immediately ready for use.

Question 141: What does the term 'functional end' of a surgical instrument refer to?

The ratchet or locking mechanism
The working tip that contacts tissue (e.g., jaw, blade, or cup) (Correct answer)
The ring handles used to hold the instrument
The box lock connecting the two shanks

Correct answer: The working tip that contacts tissue (e.g., jaw, blade, or cup)

The functional end is the working tip of the instrument—jaws, blades, or cups—that directly contacts tissue and must be inspected for damage.

Question 142: AORN guidelines recommend that the arm board angle in supine positioning should not exceed how many degrees of abduction?

90 degrees (Correct answer)
120 degrees
110 degrees
60 degrees

Correct answer: 90 degrees

Arm abduction beyond 90 degrees stretches the brachial plexus and risks traction injury; AORN recommends keeping boards at or below 90 degrees.

Question 143: A case is delayed 45 minutes after the sterile field is set up. According to AORN, what should be done?

Re-evaluate the sterility of the field; cover with a sterile drape only if continuously monitored (Correct answer)
Cover the sterile field with a sterile drape and resume when ready
Continue without change since sterility is event-related, not time-related
Tear down and re-establish the sterile field regardless of monitoring status

Correct answer: Re-evaluate the sterility of the field; cover with a sterile drape only if continuously monitored

AORN states that a sterile field should be covered with a sterile drape and can be used if it has been continuously monitored; otherwise it should be re-established.

Question 144: Which action best demonstrates compliance with AORN standards for documentation of a fire safety drill event on the surgical suite?

An incident report plus an entry in the quality improvement log with corrective actions (Correct answer)
Verbal briefing to all staff with no written record
Documentation in each staff member's personnel file only
A note written on the department whiteboard

Correct answer: An incident report plus an entry in the quality improvement log with corrective actions

AORN requires formal documentation of safety events and drills, including findings and corrective actions, within quality improvement systems.

Question 145: What is the perioperative nurse's documentation obligation when a patient refuses a planned surgical site preparation (e.g., shave prep)?

Document that the surgeon waived the prep
Skip the prep without any documentation
Perform the prep anyway and document 'completed as ordered'
Document the refusal, the education provided, and the surgeon notification (Correct answer)

Correct answer: Document the refusal, the education provided, and the surgeon notification

Patient refusal must be documented along with the education provided regarding risks, and the surgeon must be notified so an informed decision can be made.

Question 146: What is the primary purpose of a preoperative assessment?

To determine the patient's dietary preferences
To confirm the patient's family history
To schedule follow-up appointments
To evaluate the patient's readiness for surgery (Correct answer)

Correct answer: To evaluate the patient's readiness for surgery

The primary purpose of a preoperative assessment is to thoroughly evaluate the patient's overall health status and identify any factors that might affect their readiness for surgery. This includes reviewing medical history, current medications, and potential risks, allowing the surgical team to optimize the patient's condition and plan for a safe and successful procedure. It's a critical step in minimizing complications.

Question 147: What is the first priority in any emergency situation?

Contact the media
Ensure the safety of all personnel (Correct answer)
Save equipment
Write a report

Correct answer: Ensure the safety of all personnel

In any emergency, the first priority is always the safety and well-being of all personnel. Equipment and materials can be replaced; lives cannot.

Question 148: What action should be taken with an instrument that has a cracked or compromised silicone tip protector before sterilization?

Sterilize the instrument without the protector
Replace the damaged tip protector with an intact one before sterilization (Correct answer)
Tape the protector in place before placing it in the sterilizer
Discard the instrument, as the protector damage renders it unsafe

Correct answer: Replace the damaged tip protector with an intact one before sterilization

A cracked tip protector must be replaced because damaged protectors do not protect the instrument tip and may trap moisture that inhibits sterilization.

Question 149: When documenting intraoperative nursing care, which entry is most important for patient safety and legal purposes?

The number of personnel in the OR
The surgeon's preferred music during the case
Implant device identification numbers, lot numbers, and expiration dates (Correct answer)
The brand of surgical drapes used

Correct answer: Implant device identification numbers, lot numbers, and expiration dates

Implant records with device ID, lot number, and expiration date are required for traceability in case of recalls or adverse events.

Question 150: When setting up a sterile field, which action correctly maintains sterility?

Reach across the sterile field to adjust items on the far side
Flip sterile instruments onto the field from a distance to avoid contamination
Place sterile items at the edge of the drape nearest the circulator
Open sterile packages by peeling edges away and dropping contents onto the field (Correct answer)

Correct answer: Open sterile packages by peeling edges away and dropping contents onto the field

Sterile packages should be opened by peeling edges back and dropping or presenting contents to the sterile field without reaching across or touching sterile areas.

Question 151: Which volatile anesthetic agent is most commonly preferred for pediatric inhalation induction due to its non-pungent, sweet odor?

Isoflurane
Desflurane
Sevoflurane (Correct answer)
Halothane

Correct answer: Sevoflurane

Sevoflurane has a non-irritating, pleasant odor and rapid onset, making it the preferred agent for mask induction in pediatric patients.

Question 152: How does documentation support quality in Anesthesia Basics?

It creates records, ensures consistency, and enables improvement (Correct answer)
It only serves administrative purposes
It is only for billing
Documentation is unnecessary overhead

Correct answer: It creates records, ensures consistency, and enables improvement

Proper documentation creates accountability, ensures consistency, supports quality improvement, and provides legal protection.

Question 153: What is the role of a box lock in a hinged surgical instrument?

It prevents the instrument from being opened beyond a set angle
It is the pivot joint connecting the two shanks of the instrument (Correct answer)
It locks the ratchet mechanism at a specific tension
It is a safety mechanism that prevents accidental release during use

Correct answer: It is the pivot joint connecting the two shanks of the instrument

The box lock is the pivot joint where the two shanks of a hinged instrument cross and connect, allowing opening and closing motion.

Question 154: A perioperative nurse preceptor's PRIMARY responsibility when orienting a new graduate nurse is to:

Ensure the orientee completes cases as quickly as experienced staff
Facilitate learning while maintaining patient safety throughout the orientation period (Correct answer)
Delegate all teaching to the charge nurse
Limit the orientee's exposure to complex cases to reduce errors

Correct answer: Facilitate learning while maintaining patient safety throughout the orientation period

The preceptor must balance fostering the new nurse's development while never compromising patient safety during any phase of orientation.

Question 155: What is the primary concern when positioning a patient in the Trendelenburg position during surgery regarding anesthesia?

Decreased venous return to the heart
Hypothermia due to increased body surface exposure
Increased risk of peripheral nerve injury to the arms
Increased intracranial pressure and reduced respiratory compliance (Correct answer)

Correct answer: Increased intracranial pressure and reduced respiratory compliance

Trendelenburg position increases intracranial pressure and causes the abdominal contents to press on the diaphragm, reducing lung compliance and tidal volume.

Question 156: Which action by a perioperative nurse best demonstrates implementation of AORN's evidence-based practice (EBP) standards?

Implementing a new technique after observing it at a conference without reviewing the evidence
Using techniques learned during nursing school without re-evaluation
Updating the department's skin prep protocol based on current AORN guidelines and published research (Correct answer)
Following practices based solely on surgeon preference

Correct answer: Updating the department's skin prep protocol based on current AORN guidelines and published research

Updating practice protocols using current AORN guidelines and research evidence is the hallmark of EBP implementation in the perioperative setting.

Question 157: What action should the scrub technician take when a surgeon requests a Metzenbaum scissors during dissection?

Ask the circulator to retrieve the correct scissors
Pass any available scissors from the back table
Pass the instrument firmly into the surgeon's palm in the proper position for use (Correct answer)
Place the scissors on the sterile drape near the surgical site

Correct answer: Pass the instrument firmly into the surgeon's palm in the proper position for use

Instruments should be placed firmly into the surgeon's palm, positioned for immediate use, to maintain efficiency and safety.

Question 158: Which route of medication administration is the scrub person responsible for on the sterile field?

Intramuscular injections for postoperative pain
Subcutaneous injections ordered by the surgeon
Topical and irrigation medications handed to the surgeon (Correct answer)
Intravenous medications administered to the patient

Correct answer: Topical and irrigation medications handed to the surgeon

The scrub person passes topical and irrigation medications to the surgeon on the sterile field but does not administer IV or injected medications.

Question 159: A patient is scheduled for a thyroidectomy requiring neck hyperextension. Which pre-operative condition warrants special caution and communication with the surgeon?

Cervical spine instability or severe arthritis (Correct answer)
Controlled hypertension
History of appendectomy
Mild obesity

Correct answer: Cervical spine instability or severe arthritis

Cervical spine instability or severe arthritis can lead to spinal cord injury with hyperextension; the team must plan modified positioning strategies.

Question 160: Which of the following best describes the role of HEPA filtration in OR ventilation systems?

It removes particles ≥0.3 microns, including most bacteria and fungal spores (Correct answer)
It humidifies incoming air to prevent static electricity
It sterilizes air before delivery to the OR
It recirculates used OR air without filtration

Correct answer: It removes particles ≥0.3 microns, including most bacteria and fungal spores

HEPA filters capture at least 99.97% of airborne particles ≥0.3 microns, effectively removing bacteria, fungal spores, and other potential pathogens from OR air supply.

Question 161: What documentation is required for controlled substances used in the OR?

Documentation is completed only if the drug is partially wasted
Only the circulating nurse's signature is needed
Accurate count verification, patient administration record, and waste documentation signed by two licensed personnel (Correct answer)
Controlled substance logs are maintained by pharmacy, not the OR nurse

Correct answer: Accurate count verification, patient administration record, and waste documentation signed by two licensed personnel

Federal law and AORN standards require that controlled substance use be documented with a verified count, a patient administration record, and co-signed waste documentation to prevent diversion.

Question 162: According to AORN standards, what is the recommended power setting principle for electrosurgical units?

Set power to a standard facility preset regardless of tissue type
Increase power by 10% increments until hemostasis is achieved
Use the lowest effective power setting that achieves the desired tissue effect (Correct answer)
Use the highest setting to minimize activation time

Correct answer: Use the lowest effective power setting that achieves the desired tissue effect

AORN recommends using the lowest effective power setting to achieve the desired surgical effect, reducing risks of burns, smoke plume, and unintended tissue damage.

Question 163: The perioperative nurse should recognize that dantrolene sodium is the specific treatment for which anesthesia emergency?

Anaphylaxis
Laryngospasm
Malignant hyperthermia (Correct answer)
Local anesthetic systemic toxicity

Correct answer: Malignant hyperthermia

Dantrolene inhibits calcium release from the sarcoplasmic reticulum, directly treating the hypermetabolic skeletal muscle crisis of malignant hyperthermia.

Question 164: Why must sterile gloves be donned using the closed technique immediately after gowning?

To speed up the process and reduce total time before incision
Because the open technique is reserved for non-surgical sterile procedures
To prevent bare skin contact with the outer glove surface, maintaining sterility (Correct answer)
To comply with OSHA bloodborne pathogen requirements

Correct answer: To prevent bare skin contact with the outer glove surface, maintaining sterility

The closed technique uses the gown cuff to handle the glove, preventing hand skin from contacting the sterile outer glove surface and maintaining its sterility.

Question 165: Which type of OR attire is specifically required in the semi-restricted area of the surgical suite?

Sterile draping over street clothes is acceptable
Surgical scrub attire and hair covering (Correct answer)
Street clothes with a gown cover-up
Full sterile gown and gloves with hood

Correct answer: Surgical scrub attire and hair covering

The semi-restricted area requires clean surgical scrub attire and a hair covering to reduce the risk of shedding microorganisms from hair and skin.

Question 166: What is a nosocomial infection?

An infection acquired in a healthcare facility (Correct answer)
A genetic condition
A childhood disease
A respiratory infection

Correct answer: An infection acquired in a healthcare facility

Nosocomial (healthcare-associated) infections are acquired during the course of receiving medical treatment in a healthcare facility, not present at admission.

Question 167: What is the nurse's priority responsibility during the intraoperative phase?

Arranging postoperative follow-up appointments
Managing the surgeon's preferences for positioning
Ensuring the surgeon’s instruments are sterile
Monitoring the patient's vital signs and condition (Correct answer)

Correct answer: Monitoring the patient's vital signs and condition

During the intraoperative phase, the patient is under anesthesia and highly vulnerable. The nurse's priority responsibility is continuous monitoring of vital signs, oxygen saturation, cardiac rhythm, and overall physiological condition. This constant vigilance allows for the immediate detection of any adverse reactions or changes, ensuring prompt intervention to maintain patient stability and safety throughout the surgery.

Question 168: Which factor is most critical to effective chemical sterilization using ethylene oxide (ETO)?

Ensuring items are completely dry before loading into the ETO sterilizer (Correct answer)
Wrapping items in impermeable plastic before ETO exposure
Using ETO only for metal instruments, never for plastics
Maintaining a temperature above 200°C during the cycle

Correct answer: Ensuring items are completely dry before loading into the ETO sterilizer

Moisture on items before ETO sterilization reacts with ETO gas to form ethylene glycol, reducing sterilant efficacy and leaving toxic residue; thorough drying is essential.

Question 169: Which action best prevents retained surgical items (RSIs) during an emergency case when a counting policy cannot be fully followed?

Use only instrument trays without sponges
Perform an intraoperative X-ray before wound closure (Correct answer)
Rely on the surgeon's memory
Skip documentation and proceed without any count

Correct answer: Perform an intraoperative X-ray before wound closure

Intraoperative radiographic imaging before closure is the safest backup measure when a standard count cannot be completed.

Question 170: Which of the following interventions is most important for preventing postoperative complications?

Encouraging the patient to consume solid food immediately after surgery
Discharging the patient as soon as anesthesia wears off
Applying heat packs to all surgical incisions
Monitoring for signs of infection and addressing them early (Correct answer)

Correct answer: Monitoring for signs of infection and addressing them early

Postoperative infection is a common and serious complication that can significantly impede recovery and lead to severe health issues. Vigilant monitoring for signs of infection, such as fever, redness, swelling, or discharge at the surgical site, and addressing them early with appropriate interventions, is crucial. Early detection and treatment are key to preventing the infection from worsening and ensuring a successful recovery.

Question 171: Which patient population is at highest risk for perioperative hypothermia?

Healthy adults aged 30-50
Patients receiving regional anesthesia only
Athletic male patients
Pediatric and elderly patients (Correct answer)

Correct answer: Pediatric and elderly patients

Pediatric patients lose heat rapidly due to high surface-area-to-body-mass ratio, and elderly patients have diminished thermoregulatory responses.

Question 172: What does informed consent require?

Family approval only
Verbal agreement only
Explaining the procedure, risks, benefits, and alternatives to the patient (Correct answer)
Getting any signature on a form

Correct answer: Explaining the procedure, risks, benefits, and alternatives to the patient

Informed consent requires that patients understand the proposed procedure, its risks and benefits, alternatives, and have the opportunity to ask questions before agreeing.

Question 173: What is the primary goal of maintaining a moist wound environment during healing?

Preventing bacterial colonization entirely
Eliminating the need for wound dressings
Facilitating cell migration and reducing scar formation (Correct answer)
Increasing wound surface temperature

Correct answer: Facilitating cell migration and reducing scar formation

A moist wound environment optimizes cell migration, supports autolytic debridement, and has been shown to reduce scar formation compared to dry healing.

Question 174: According to AORN standards, staff who reprocess surgical instruments must:

Complete reprocessing only under direct physician supervision
Hold an RN license or equivalent clinical credential
Be certified sterile processing technicians before performing any reprocessing
Receive competency-based education and demonstrate proficiency in reprocessing tasks (Correct answer)

Correct answer: Receive competency-based education and demonstrate proficiency in reprocessing tasks

AORN requires that all personnel reprocessing instruments receive competency-based education and demonstrate validated proficiency in each reprocessing task they perform.

Question 175: A perioperative nurse notices a colleague appears impaired at the start of a shift. The MOST appropriate action is to:

Ask the surgeon to evaluate the colleague
Wait until after the case to address the situation
Allow the colleague to work and monitor them closely
Report the concern to the charge nurse or supervisor immediately (Correct answer)

Correct answer: Report the concern to the charge nurse or supervisor immediately

An impaired colleague poses an immediate patient safety risk, requiring prompt reporting to a supervisor before any patient care occurs.

Question 176: What is the significance of a 'cannot intubate, cannot oxygenate' (CICO) emergency?

It is managed by inserting a laryngeal mask airway
It requires repositioning the patient to the prone position
It resolves with bag-mask ventilation using two hands
It requires immediate cricothyrotomy as a rescue airway technique (Correct answer)

Correct answer: It requires immediate cricothyrotomy as a rescue airway technique

A CICO emergency is life-threatening and mandates emergency front-of-neck airway access (cricothyrotomy) as the definitive rescue maneuver.

Question 177: A scrub person accidentally touches the non-sterile OR table edge with a sterile-gloved hand. What should occur?

The glove must be changed and the contaminated area of the sterile field discarded (Correct answer)
The surgeon should be notified and the procedure paused for 10 minutes
The area should be wiped with a sterile sponge soaked in antiseptic
The scrub person should continue if the contamination was brief

Correct answer: The glove must be changed and the contaminated area of the sterile field discarded

Any contact between a sterile item and a non-sterile surface constitutes contamination; the glove must be replaced and affected sterile items removed from the field.

Question 178: Which is the MOST appropriate way to correct a documentation error in a paper-based intraoperative record?

Discard the page and restart on a new form
Draw a single line through the error, write the correction, and add date, time, and initials (Correct answer)
Use correction fluid to cover the error and write the correct information
Completely black out the error so it is unreadable

Correct answer: Draw a single line through the error, write the correction, and add date, time, and initials

A single line through the error with the correction, date, time, and initials preserves the original entry and maintains record integrity.

Question 179: Which PPE is required for perioperative personnel when preparing chemotherapy agents in the OR environment?

Standard surgical gloves only
N95 mask and standard gown
Double chemotherapy-rated gloves, gown, and eye protection under a ventilated hood (Correct answer)
Full-body chemical suit with supplied air

Correct answer: Double chemotherapy-rated gloves, gown, and eye protection under a ventilated hood

NIOSH guidelines require double chemotherapy-rated gloves, an impermeable gown, eye protection, and a ventilated hood or biological safety cabinet when handling hazardous drugs.

Question 180: Before applying the dispersive electrode, what patient assessment should the perioperative nurse perform?

Check the patient's blood pressure and heart rate for hemodynamic stability
Measure the patient's body temperature to ensure adequate perfusion
Verify that the patient has not eaten within 8 hours prior to surgery
Assess the patient's allergy history and inspect the intended placement site for hair, scar tissue, bony prominences, or compromised skin integrity (Correct answer)

Correct answer: Assess the patient's allergy history and inspect the intended placement site for hair, scar tissue, bony prominences, or compromised skin integrity

The perioperative nurse must inspect the dispersive electrode placement site for conditions (hair, scars, bony prominences, skin breakdown) that reduce contact area or conductivity and increase burn risk.

Question 181: When loading a gravity displacement steam sterilizer, heavier packs should be placed:

Adjacent to the drain port regardless of shelf position
On the bottom shelf so heat rises through the load (Correct answer)
In any position since gravity sterilizers distribute steam uniformly
On the top shelf to allow condensate to drain downward

Correct answer: On the bottom shelf so heat rises through the load

In gravity displacement sterilizers, heavier and denser packs are placed on the bottom shelf to maximize steam exposure as lighter air is displaced downward and out.

Question 182: What is the primary purpose of a surgical safety checklist item addressing known allergies before incision?

To alert the pharmacy department
To satisfy accreditation requirements
To prevent adverse drug reactions including allergy-related infections (Correct answer)
To document patient history for billing

Correct answer: To prevent adverse drug reactions including allergy-related infections

Verifying allergies before incision prevents administering contraindicated prophylactic agents that could cause reactions or require alternative (less effective) antibiotic choices.

Question 183: What is the perioperative nurse's responsibility when a surgeon requests an unlabeled medication on the sterile field?

Allow the scrub technician to decide
Document verbal confirmation and proceed
Refuse to administer the unlabeled medication (Correct answer)
Administer it if the surgeon verbally confirms the drug

Correct answer: Refuse to administer the unlabeled medication

AORN mandates that all medications on the sterile field be labeled; the nurse should refuse to pass an unlabeled medication to prevent medication errors.

Question 184: Which scenario describes appropriate use of the perioperative nurse's authority to refuse a patient care assignment?

The nurse lacks the specific competency required to safely perform the assignment (Correct answer)
The nurse disagrees with the surgeon's preferred technique
The nurse prefers a different type of case
The nurse is fatigued from a previous long shift but has not yet reported it

Correct answer: The nurse lacks the specific competency required to safely perform the assignment

A nurse may decline an assignment when they lack the clinical competency to perform it safely, which is a professional and ethical obligation.

Question 185: The perioperative nurse notices a patient's arm has been inadvertently tucked with the palm facing outward (pronated) while supine. The primary risk is injury to the:

Radial nerve from external rotation and extension stress (Correct answer)
Ulnar nerve at the hand
Digital nerves of the thumb
Median nerve at the wrist

Correct answer: Radial nerve from external rotation and extension stress

Tucking the arm with the palm facing outward externally rotates the humerus and can stretch or compress the radial nerve.

Question 186: What is the nurse’s role during a fire in the operating room?

Documenting the incident while the surgical team handles the fire
Protecting the patient and maintaining the sterile field
Turning off all lights and electrical equipment in the room
Extinguishing the fire and immediately evacuating the patient (Correct answer)

Correct answer: Extinguishing the fire and immediately evacuating the patient

In the event of a fire in the operating room, the nurse's primary and immediate responsibility is to ensure patient safety. This involves quickly assessing the fire's size and, if safe and small, attempting to extinguish it while simultaneously preparing for or initiating the immediate evacuation of the patient from the danger zone. Protecting the patient from harm and removing them from the hazardous environment takes precedence over other actions.

Question 187: A surgical instrument that was sterilized 6 months ago is retrieved from storage. The packaging is intact with no visible damage, moisture, or tears. According to event-related sterility maintenance, is the item still considered sterile?

No — steam-sterilized items expire after 6 months by AORN mandate
No — all items expire after 30 days regardless of packaging condition
Yes — sterility is maintained as long as the packaging integrity is intact (Correct answer)
Yes — but it must be re-sterilized before use as a precaution

Correct answer: Yes — sterility is maintained as long as the packaging integrity is intact

AORN supports event-related sterility: a properly packaged sterile item remains sterile indefinitely unless the packaging is compromised by moisture, tears, or other events.

Question 188: According to AORN guidelines, where should the electrosurgical pencil (active electrode) be stored when not in active use during surgery?

In a clean, dry holster or holder away from the patient and drapes (Correct answer)
Submerged in sterile saline to prevent accidental activation
On the sterile field drape near the incision site for quick access
Handed off the sterile field to the circulator when not needed

Correct answer: In a clean, dry holster or holder away from the patient and drapes

AORN recommends storing the inactive electrosurgical pencil in a clean, dry holster positioned away from the patient to prevent accidental activation, fire, or unintended burns.

Question 189: When caring for a patient undergoing laparoscopic surgery, which risk is unique to the pneumoperitoneum?

CO2 gas embolism (Correct answer)
Latex allergy reaction
Surgical site infection
Pressure ulcer formation

Correct answer: CO2 gas embolism

CO2 used to create pneumoperitoneum can enter the bloodstream through injured vessels, causing potentially fatal gas embolism.

Question 190: What is the correct order for donning PPE?

Mask, gloves, gown, eye protection
Any order is acceptable
Gloves, gown, mask, eye protection
Gown, mask, eye protection, gloves (Correct answer)

Correct answer: Gown, mask, eye protection, gloves

The correct donning sequence is gown first, then mask/respirator, eye protection/face shield, and gloves last. This prevents contamination during application.

Question 191: Which action should be taken with instruments used on a patient with a known prion disease (e.g., CJD)?

Segregation and special decontamination protocols per facility policy, or single-use instruments (Correct answer)
Soaking in high-level disinfectant for 30 minutes
Immediate disposal in a biohazard bag after the procedure
Standard steam sterilization followed by quarantine

Correct answer: Segregation and special decontamination protocols per facility policy, or single-use instruments

Prion-contaminated instruments require specialized handling protocols or single-use instruments because standard sterilization does not inactivate prions.

Question 192: Which of the following is considered a break in sterile technique?

Wearing a surgical mask in the operating room
Allowing a sterile object to fall below waist level (Correct answer)
Keeping sterile instruments on a sterile field
Touching a sterile drape with sterile gloves

Correct answer: Allowing a sterile object to fall below waist level

In sterile technique, any object that falls below waist level or out of the line of sight is considered contaminated because these areas cannot be consistently monitored for sterility. This principle helps maintain a strict sterile field, preventing microorganisms from non-sterile environments from reaching the surgical site and causing infection.

Question 193: Which instrument-handling practice is specifically recommended by AORN to prevent sharps injuries in the OR?

Verbally announcing each sharp transfer and making direct eye contact
Using the neutral zone or hands-free technique for passing sharps (Correct answer)
Placing sharps in a small basin on the Mayo stand and leaving them uncovered
Recapping needles immediately after use using both hands

Correct answer: Using the neutral zone or hands-free technique for passing sharps

AORN's Recommended Practices specify the hands-free (neutral zone) technique as the primary method to prevent sharps injuries during instrument transfer.

Question 194: A scrub person notices that a ring-handled retractor is bent during a procedure. What is the appropriate action?

Bend it back to the original shape and continue using it
Inform the surgeon, remove the instrument from the sterile field, and replace it (Correct answer)
Continue using the instrument if the surgeon approves
Place a note on the instrument and return it to the sterile processing department after the case

Correct answer: Inform the surgeon, remove the instrument from the sterile field, and replace it

Damaged instruments should be removed from service immediately, documented, and replaced to ensure patient safety and instrument integrity.

Question 195: When a patient is positioned in the sitting (beach chair) position, which cerebrovascular risk is most important to monitor?

Increased cerebral venous pressure
Venous air embolism only
Cerebral hypoperfusion due to reduced mean arterial pressure at brain level (Correct answer)
Hypertensive crisis

Correct answer: Cerebral hypoperfusion due to reduced mean arterial pressure at brain level

The brain is above heart level in the sitting position, so effective cerebral perfusion pressure drops approximately 2 mmHg per 2.5 cm of height above the heart.

Question 196: What is the primary purpose of professional certification in Wound Management?

To meet legal requirements only
To increase salary automatically
To validate competency and knowledge in the field (Correct answer)
To replace practical experience

Correct answer: To validate competency and knowledge in the field

Certification validates that a professional has met established standards of knowledge and competency in Wound Management.

Question 197: A patient in reverse Trendelenburg position is at greatest risk for which complication?

Facial edema
Increased intracranial pressure
Venous pooling in the lower extremities (Correct answer)
Pulmonary edema

Correct answer: Venous pooling in the lower extremities

In reverse Trendelenburg, gravity causes blood to pool in dependent lower extremities, reducing venous return and cardiac output.

Question 198: Which of the following is an acceptable method for pouring sterile solution onto a sterile field?

Hold the bottle over the field and pour slowly from any height
Hand the open bottle to the scrub technician to pour directly
Pour close to the sterile receptacle without splashing, after discarding the first few drops (Correct answer)
Pour from a distance of 6 inches, keeping the bottle cap sterile side down

Correct answer: Pour close to the sterile receptacle without splashing, after discarding the first few drops

Sterile solution should be poured near the edge of the receptacle without splashing, and the first pour is discarded to remove any contaminants at the bottle lip.

Question 199: Which of the following is the MOST important assessment for the perioperative nurse to complete before administering a pre-operative sedative medication?

Confirming the patient has signed their advance directive
Verifying allergies, vital signs, NPO status, and that consent has been obtained (Correct answer)
Checking that the OR has been cleaned
Confirming the patient's insurance authorization

Correct answer: Verifying allergies, vital signs, NPO status, and that consent has been obtained

Before any sedative is given, the nurse must verify NPO status, allergies, baseline vital signs, and that informed consent is on the chart to ensure patient safety.

Question 200: According to AORN, what is the correct order when donning sterile attire for a procedure?

Mask, gown, then gloves with the closed technique (Correct answer)
Gloves, then gown
Gloves with open technique, then gown
Gown, then gloves

Correct answer: Mask, gown, then gloves with the closed technique

AORN recommends donning the mask before entering the OR, then gowning, then gloving using the closed technique to prevent hand contamination.

Question 201: Which documentation practice BEST supports accurate surgical count reconciliation when a radiograph is ordered to search for a retained item?

Let the radiologist document the x-ray findings in the surgical record
Document that the x-ray was ordered and await results before making further entries
Document 'x-ray negative' based on the surgeon's verbal report without waiting for the official read
Document the count discrepancy, the surgeon notification, the x-ray order time, radiologist result time, and the final resolution (Correct answer)

Correct answer: Document the count discrepancy, the surgeon notification, the x-ray order time, radiologist result time, and the final resolution

Complete documentation of the count discrepancy timeline — including all notifications, x-ray order and result times, and final resolution — is required for both legal protection and quality review.

Question 202: The Occupational Safety and Health Administration (OSHA) Bloodborne Pathogens Standard requires perioperative nurses to:

Use standard precautions only for patients with known infections
Recap needles using two hands after each use
Immediately report all needle-stick injuries and undergo post-exposure evaluation (Correct answer)
Dispose of sharps in regular waste bins if capped

Correct answer: Immediately report all needle-stick injuries and undergo post-exposure evaluation

OSHA requires immediate reporting and post-exposure evaluation after needle-stick injuries to facilitate timely prophylaxis.

CNOR Perioperative Nursing Certification Exam

The CNOR Perioperative Nursing Certification Exam by AORN assesses perioperative nurses in patient care, infection prevention, aseptic technique, surgical positioning, instrument handling, patient safety, anesthesia basics, wound management, sterilization, documentation, surgical counts, and medication safety.

200

Questions

180 min

Time Limit

74%

To Pass

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