CNOR Perioperative Nursing Certification Exam — Questions and Answers

Question 1: A perioperative nurse discovers an unresponsive patient in the preoperative holding area. After calling for help, the next immediate action is:

Obtain IV access and prepare medications
Page the surgeon and anesthesiologist to respond
Initiate CPR and retrieve the AED (Correct answer)
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 2: 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
Aerosolized blood and saline only
Viable cellular material, toxic chemicals, and ultrafine particles (Correct answer)
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 3: What is the significance of the 'five rights' of medication administration in the perioperative setting?

They are optional guidelines for experienced OR nurses
They apply only to medications given by the anesthesia team
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 4: When caring for a patient undergoing laparoscopic surgery, which risk is unique to the pneumoperitoneum?

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

Correct answer: CO2 gas embolism

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

Question 5: The CNOR credential is significant in perioperative nursing because it:

Replaces state licensure requirements for OR nurses
Qualifies the nurse to supervise anesthesia providers
Is required by law for all nurses working in the OR
Validates specialized knowledge and competency in perioperative nursing practice (Correct answer)

Correct answer: Validates specialized knowledge and competency in perioperative nursing practice

CNOR is a voluntary certification that validates a nurse's specialized knowledge, skills, and commitment to excellence in perioperative practice.

Question 6: When documenting intraoperative nursing care, which entry is most important for patient safety and legal purposes?

The number of personnel in the OR
Implant device identification numbers, lot numbers, and expiration dates (Correct answer)
The surgeon's preferred music during the case
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 7: Which bacteria is MOST commonly associated with surgical site infections following colorectal procedures?

Pseudomonas aeruginosa
Escherichia coli (Correct answer)
Clostridium difficile
Staphylococcus aureus

Correct answer: Escherichia coli

E. coli is the predominant gram-negative organism in the colon and the most frequently isolated pathogen in colorectal SSIs.

Question 8: Which event requires immediate gown and glove change for a scrubbed team member?

Brushing the non-sterile anesthesia screen with an elbow (Correct answer)
Receiving a sterile item passed by the circulator
Touching another scrubbed team member's sterile sleeve
Adjusting the sterile drape with a sterile towel clamp

Correct answer: Brushing the non-sterile anesthesia screen with an elbow

Contact with a non-sterile surface, such as the anesthesia screen, contaminates the gown and requires immediate regowning and regloving.

Question 9: Which of the following is considered a break in sterile technique?

Keeping sterile instruments on a sterile field
Allowing a sterile object to fall below waist level (Correct answer)
Wearing a surgical mask in the operating room
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 10: A patient in reverse Trendelenburg position is at greatest risk for which complication?

Facial edema
Venous pooling in the lower extremities (Correct answer)
Increased intracranial pressure
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 11: Which practice helps prevent wrong-route medication errors in the perioperative setting?

Relying on verbal orders without written confirmation
Storing all medication types in the same location
Labeling syringes only after administration
Using tubing and connections that are route-specific and cannot be misconnected (e.g., enteral vs. IV connectors) (Correct answer)

Correct answer: Using tubing and connections that are route-specific and cannot be misconnected (e.g., enteral vs. IV connectors)

Route-specific connectors (ISO 80369 standards) physically prevent misconnection between enteral, IV, and epidural lines, eliminating a common class of wrong-route errors.

Question 12: 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 charge nurse acting as OR resource coordinator (Correct answer)
The circulating nurse of the trauma OR
The surgical team leader of the first incoming case
The anesthesia attending

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 13: 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
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
Inform the surgeon, remove the instrument from the sterile field, and replace it (Correct answer)

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 14: When performing intraoperative wound irrigation, which solution is recommended by AORN guidelines as the primary agent for reducing surgical site infection (SSI)?

Normal saline (0.9%) (Correct answer)
Hydrogen peroxide 3%
Chlorhexidine gluconate 4%
Povidone-iodine 10%

Correct answer: Normal saline (0.9%)

AORN recommends normal saline (0.9%) as the primary irrigation solution because it is isotonic and does not damage tissue or impair healing.

Question 15: How should the dispersive electrode be removed from the patient at the end of a surgical procedure?

Cut around the pad perimeter with scissors before lifting
Pulled off rapidly in one motion to minimize discomfort
Peeled back slowly and gently, parallel to the skin, while supporting surrounding tissue (Correct answer)
Soaked with saline first to dissolve the adhesive before removal

Correct answer: Peeled back slowly and gently, parallel to the skin, while supporting surrounding tissue

Slow, gentle removal parallel to the skin while supporting surrounding tissue minimizes shear forces that could strip fragile skin, especially in elderly or compromised patients.

Question 16: When should a scrub person perform an initial instrument count?

Before the patient enters the operating room
Immediately after the surgeon makes the first incision
Before the procedure begins, prior to incision (Correct answer)
After the surgical site is draped

Correct answer: Before the procedure begins, prior to incision

The initial instrument count must be performed before the procedure begins to establish an accurate baseline count.

Question 17: Which nerve block provides anesthesia for the entire upper extremity below the shoulder?

Intercostal nerve block
Cervical plexus block
Femoral nerve block
Brachial plexus block (Correct answer)

Correct answer: Brachial plexus block

A brachial plexus block anesthetizes the C5–T1 nerve roots that supply the arm, forearm, and hand, making it ideal for upper extremity surgery.

Question 18: The Bowie-Dick test is performed to verify:

Biological indicator accuracy in pre-vacuum sterilizers
Adequate air removal and steam penetration in pre-vacuum steam sterilizers (Correct answer)
Dry heat sterilizer calibration
Chemical indicator color change consistency

Correct answer: Adequate air removal and steam penetration in pre-vacuum steam sterilizers

The Bowie-Dick test (or equivalent) verifies that pre-vacuum sterilizers adequately remove air and allow uniform steam penetration throughout the chamber.

Question 19: 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 20: What is the proper procedure for hand hygiene before performing a surgical scrub?

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

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 21: What is the relationship between theory and practice in Anesthesia Basics?

They are completely separate
Practice is unnecessary if you know theory
Theory is unnecessary
Theory provides the foundation; practice applies it to real situations (Correct answer)

Correct answer: Theory provides the foundation; practice applies it to real situations

Theory provides the conceptual foundation and principles, while practice involves applying those concepts to real-world situations. Both are essential for competence.

Question 22: What is HIPAA?

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

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 23: Which of the following is the correct method for counting sponges on the sterile field?

Counting sponges one at a time while separated from the group (Correct answer)
Counting sponges only when a discrepancy is suspected
Counting only used sponges at the end of the case
Counting sponges in their original package groupings

Correct answer: Counting sponges one at a time while separated from the group

Sponges must be separated individually and counted one at a time to prevent miscounting caused by sponges sticking together.

Question 24: Which ethical principle is upheld when a perioperative nurse obtains informed consent verification before a procedure begins?

Justice
Beneficence
Autonomy (Correct answer)
Fidelity

Correct answer: Autonomy

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

Question 25: Which parameter is NOT a critical variable in hydrogen peroxide plasma sterilization?

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

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 26: 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 the instrument firmly into the surgeon's palm in the proper position for use (Correct answer)
Pass any available scissors from the back table
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 27: What is the purpose of documenting the exact time of surgical incision separately from the anesthesia start time?

It is required only for procedures lasting more than four hours
It allows accurate calculation of procedure duration for quality metrics and antibiotic re-dosing intervals (Correct answer)
It is used to calculate nursing overtime pay
It satisfies a surgeon credentialing requirement

Correct answer: It allows accurate calculation of procedure duration for quality metrics and antibiotic re-dosing intervals

Incision time is a distinct quality metric and is used to time prophylactic antibiotic re-dosing intervals per SCIP/AORN guidelines.

Question 28: When loading a gravity displacement steam sterilizer, heavier packs should be placed:

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

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 29: Which factor is most strongly associated with an increased risk of retained surgical items?

Unplanned changes in the surgical procedure (Correct answer)
Short operative times under one hour
Elective procedures with full pre-op counts
The use of laparoscopic technique only

Correct answer: Unplanned changes in the surgical procedure

Unplanned changes in the surgical procedure are the most consistently identified risk factor for retained surgical items in research and AORN literature.

Question 30: AORN recommends that the perioperative nurse perform a pre-positioning skin and neurovascular assessment primarily to:

Satisfy Joint Commission requirements only
Identify surgical site infection risks
Document baseline status so post-operative changes can be attributed to positioning (Correct answer)
Determine blood type compatibility

Correct answer: Document baseline status so post-operative changes can be attributed to positioning

A documented baseline assessment allows the team to distinguish pre-existing conditions from positioning-related injuries identified post-operatively.

Question 31: Which of the following is a key component of a surgical time-out per The Joint Commission Universal Protocol?

Documenting postoperative pain scores
Confirming patient identity, procedure, and site (Correct answer)
Obtaining verbal consent from the patient
Reviewing the patient's insurance information

Correct answer: Confirming patient identity, procedure, and site

The Universal Protocol time-out requires active verification of patient identity, correct procedure, and correct site before incision.

Question 32: According to AORN guidelines, at what minimum temperature should the operating room environment be maintained to support optimal wound healing and reduce SSI risk?

68°F (20°C) (Correct answer)
60°F (15.6°C)
72°F (22.2°C)
65°F (18.3°C)

Correct answer: 68°F (20°C)

AORN recommends the OR temperature be maintained at a minimum of 68°F (20°C) to support patient normothermia and reduce SSI risk.

Question 33: 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
Organ/space SSI
Healthcare-associated pneumonia
Superficial incisional SSI (Correct answer)

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 34: Which action by the circulating nurse best reduces the risk of surgical site infection (SSI) during a procedure?

Keeping the OR door open for ventilation
Administering prophylactic antibiotics before incision as ordered (Correct answer)
Applying a second set of sterile drapes
Using warm saline for irrigation

Correct answer: Administering prophylactic antibiotics before incision as ordered

Prophylactic antibiotics administered within the recommended window before incision significantly reduce SSI risk.

Question 35: Which zone around a sterile-draped table is considered the sterile field boundary per AORN guidelines?

The top surface of the drape only (Correct answer)
The entire surgical suite floor
A 12-inch perimeter extending beyond the drape edges
The drape top and sides down to table height

Correct answer: The top surface of the drape only

Only the top surface of the sterile drape is considered sterile; the edges and sides hanging below table level are not sterile.

Question 36: 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 is fatigued from a previous long shift but has not yet reported it
The nurse disagrees with the surgeon's preferred technique
The nurse prefers a different type of case

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 37: 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
Edges are sterile as long as they remain above the table level
The entire drape surface is sterile if sealed packages were used
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 38: A perioperative nurse who identifies a conflict of interest—such as a financial relationship with a vendor—should:

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

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 39: What is the primary role of the perioperative RN during the intraoperative phase related to anesthesia administration?

Independently adjusting anesthetic agent concentrations based on vital signs
Calculating drug doses and drawing up anesthetic medications
Managing the anesthesia machine settings
Monitoring the patient and communicating changes to the anesthesia provider (Correct answer)

Correct answer: Monitoring the patient and communicating changes to the anesthesia provider

The perioperative RN continuously monitors the patient, documents changes, and communicates relevant findings to the anesthesia provider during the intraoperative phase.

Question 40: 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)
Applying eye drops every 30 minutes only
Turning the head to one side throughout the case
Using standard foam donut rings under the eyes

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 41: Under AORN guidelines, which statement about the scrub role performed by an RN versus a surgical technologist is TRUE?

The RN retains overall nursing accountability for patient care regardless of who performs the scrub role (Correct answer)
Only RNs are permitted to perform the scrub role in all US states
The scrub role requires an advanced nursing degree
Surgical technologists may independently assess patients when scrubbing

Correct answer: The RN retains overall nursing accountability for patient care regardless of who performs the scrub role

Regardless of who fills the scrub role, the RN circulator maintains professional nursing accountability for the patient's overall care.

Question 42: What does the term 'functional end' of a surgical instrument refer to?

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

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

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

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 44: The perioperative nurse notes a patient's SpO2 is 94% on room air pre-operatively. What is the most appropriate initial action?

Cancel the surgery without consulting the surgeon
Proceed with the surgical prep immediately
Notify the anesthesia provider and document the finding (Correct answer)
Administer supplemental oxygen without notifying anyone

Correct answer: Notify the anesthesia provider and document the finding

A SpO2 of 94% is below the normal threshold and must be reported to the anesthesia provider for evaluation before proceeding.

Question 45: AORN's Standards of Perioperative Nursing Practice are best described as:

Institutional policies specific to each hospital
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

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 46: How should a scrub person handle a suture needle that becomes unintentionally separated from the holder during surgery?

Retrieve it by hand and pass it back to the surgeon
Use a needle holder or forceps to retrieve it and account for it in the count (Correct answer)
Notify the circulator to retrieve the needle from the floor
Place a new needle on a fresh holder and continue without noting the lost needle

Correct answer: Use a needle holder or forceps to retrieve it and account for it in the count

A loose needle must be retrieved with instruments (not bare hands) and immediately accounted for in the count to prevent a retained needle.

Question 47: What is the primary purpose of instrument stringers or holders during a surgical procedure?

To keep instruments sterile and organized on the back table
To transport instruments from the sterile processing department
To hold instruments for the surgeon during the procedure (Correct answer)
To count instruments at the end of the case

Correct answer: To hold instruments for the surgeon during the procedure

Instrument stringers or holders are used to pass instruments to the surgeon efficiently during the procedure.

Question 48: A patient undergoing a total hip replacement is found to have an active methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization. Which preoperative intervention is recommended by AORN?

Cancel the surgery until MRSA is fully eradicated
Administer vancomycin prophylaxis only without decolonization
Apply mupirocin nasal ointment and chlorhexidine skin bathing protocol preoperatively (Correct answer)
Proceed without modification since colonization is not active infection

Correct answer: Apply mupirocin nasal ointment and chlorhexidine skin bathing protocol preoperatively

AORN recommends a decolonization protocol including intranasal mupirocin and preoperative chlorhexidine bathing for MRSA-positive patients to reduce SSI risk.

Question 49: Which federal regulation most directly governs the RN's scope of practice in the perioperative setting?

State Nurse Practice Acts (Correct answer)
The Joint Commission National Patient Safety Goals
FDA Medical Device Regulations
OSHA Bloodborne Pathogen Standard

Correct answer: State Nurse Practice Acts

State Nurse Practice Acts define the legal scope of practice for RNs in each state, including perioperative settings.

Question 50: Which of the following patients requires placement in a negative-pressure isolation room for perioperative care?

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

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 51: When counting surgical sponges near the wound, the perioperative nurse should ensure sponges are:

Weighed instead of counted for accuracy during major hemorrhage
Counted only at the beginning and end of the procedure
Kept in the sterile field in stacks of 10 for efficiency
Separated and counted individually on a standardized count board (Correct answer)

Correct answer: Separated and counted individually on a standardized count board

AORN standards require sponges to be separated and individually counted on a count board to ensure accurate accounting and prevent retained surgical items.

Question 52: What is the primary purpose of pre-oxygenation (denitrogenation) before general anesthesia induction?

To extend the safe apnea period by increasing oxygen reserves in the lungs (Correct answer)
To speed up the induction of anesthesia
To reduce patient anxiety before losing consciousness
To prevent postoperative nausea and vomiting

Correct answer: To extend the safe apnea period by increasing oxygen reserves in the lungs

Pre-oxygenation replaces nitrogen in the FRC with oxygen, extending the time before desaturation occurs during apnea at induction.

Question 53: 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)
Using equal doses of opioids and benzodiazepines
Balancing anesthetic depth with patient blood pressure

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

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

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 55: 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 closed, tips pointing away from the surgeon
Ratchet locked on the first tooth, tips up
Ratchet open, ring handles toward the surgeon's palm

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 56: During a prolonged lithotomy procedure, a patient's legs should be lowered slowly and simultaneously at the end of the case primarily to prevent:

Hip dislocation
Sudden hypotension from redistribution of blood volume to lower extremities (Correct answer)
Urinary retention
Foot drop

Correct answer: Sudden hypotension from redistribution of blood volume to lower extremities

Rapid lowering of legs causes abrupt pooling of blood in the lower extremities, reducing venous return and causing sudden, potentially severe hypotension.

Question 57: The ASA Physical Status Classification System is used to:

Determine the type of anesthesia to be used
Document surgical consent
Calculate the required dose of anesthetic agents
Assess perioperative risk and communicate patient health status (Correct answer)

Correct answer: Assess perioperative risk and communicate patient health status

The ASA-PS classification (I–VI) standardizes communication about a patient's physical health status and correlates with perioperative morbidity and mortality risk.

Question 58: A circulating nurse is preparing to transfer a patient from the OR table to the transport stretcher. Which patient safety measure is most critical?

Ensure the patient's head is elevated 30 degrees during transfer
Confirm adequate personnel are present and all team members are positioned before moving the patient (Correct answer)
Remove all monitoring leads before initiating the transfer
Lock only the OR table; the stretcher can remain unlocked if held firmly

Correct answer: Confirm adequate personnel are present and all team members are positioned before moving the patient

Patient transfers require sufficient personnel with clear role assignments and locked transport surfaces on both sides to prevent falls or injury during the transfer.

Question 59: When assembling a laparoscopic instrument set before a procedure, what is the most important check?

Ensure all instruments are the same size
Confirm all instruments are made by the same manufacturer
Verify that all instrument components are complete, functional, and matched (Correct answer)
Check that the camera and light cables are attached to instruments

Correct answer: Verify that all instrument components are complete, functional, and matched

Ensuring all components are complete, matched, and functional prevents intraoperative failures caused by missing or mismatched parts.

Question 60: When responding to an intraoperative anaphylactic reaction, which medication is the first-line treatment?

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

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 61: When preparing a surgical site with an alcohol-containing antiseptic, what is the most critical fire-prevention precaution?

Limit prep area to 4 inches beyond the incision site
Apply the prep solution at room temperature only
Allow the prep solution to fully dry and vapors to dissipate before draping (Correct answer)
Use a single applicator stroke from periphery to center

Correct answer: Allow the prep solution to fully dry and vapors to dissipate before draping

Alcohol-containing preps are highly flammable; pooled or undried solution beneath drapes can ignite from electrosurgery sparks, so full drying before draping is mandatory.

Question 62: Which precaution is essential when handling instruments with tungsten carbide inserts?

Avoid contact with saline, which corrodes tungsten carbide
Handle gently to prevent chipping, as tungsten carbide is brittle despite its hardness (Correct answer)
Use only ultrasonic cleaning to protect the inserts
Sterilize separately from stainless steel instruments

Correct answer: Handle gently to prevent chipping, as tungsten carbide is brittle despite its hardness

Tungsten carbide is extremely hard but brittle; rough handling or dropping can chip or crack the inserts, destroying the instrument's function.

Question 63: What is the primary responsibility of the circulating nurse during a surgical procedure?

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

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

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

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 65: Which assessment finding in the preoperative holding area requires the nurse to notify the surgeon before proceeding?

Blood pressure of 128/82 mmHg
Patient had clear liquids 4 hours ago
Mild anxiety about the procedure
Patient reports taking aspirin daily and took it this morning (Correct answer)

Correct answer: Patient reports taking aspirin daily and took it this morning

Aspirin taken the day of surgery increases bleeding risk, and the surgeon must decide whether to delay or proceed with appropriate precautions.

Question 66: When a patient is positioned in the sitting (beach chair) position, which cerebrovascular risk is most important to monitor?

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

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 67: During a procedure, the anesthesia provider calls out 'can't intubate, can't oxygenate.' What is the perioperative nurse's immediate priority?

Document the event in the chart
Leave the room to get more help
Activate the difficult airway/emergency response and retrieve the emergency cart (Correct answer)
Continue counting instruments

Correct answer: Activate the difficult airway/emergency response and retrieve the emergency cart

A 'can't intubate, can't oxygenate' scenario is life-threatening; the nurse must immediately activate the emergency response and bring emergency equipment.

Question 68: When must the initial surgical count be performed?

At the end of the procedure
After the incision is made
Before the procedure begins, before the incision is made (Correct answer)
At the time of wound closure

Correct answer: Before the procedure begins, before the incision is made

The initial count must occur before the procedure begins so a baseline is established prior to any items entering the surgical field.

Question 69: When documenting positioning devices used during a surgical procedure, the perioperative nurse should record:

All positioning devices, their locations, and the name of the person who applied them (Correct answer)
Only the type of OR table used
The surgeon's written positioning order only
A general statement that 'standard positioning was used'

Correct answer: All positioning devices, their locations, and the name of the person who applied them

Specific documentation of all positioning aids, their placement, and who applied them supports accountability and helps investigate any postoperative positioning injuries.

Question 70: A circulator notices a small tear in a sterile gown cuff during a procedure. What is the correct response?

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

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

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

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 72: Which intraoperative position creates the greatest risk for compartment syndrome of the lower extremities?

Lateral with axillary roll in place
Supine with arms tucked
Prone with chest rolls supporting the thorax
Lithotomy with legs elevated in stirrups for more than 2 hours (Correct answer)

Correct answer: Lithotomy with legs elevated in stirrups for more than 2 hours

Prolonged lithotomy position elevates compartment pressure in the lower legs through combined compression and ischemia-reperfusion injury upon repositioning.

Question 73: What is the recommended minimum air exchanges per hour in an operating room to reduce airborne contamination?

10 air exchanges per hour
15 air exchanges per hour
20 air exchanges per hour (Correct answer)
5 air exchanges per hour

Correct answer: 20 air exchanges per hour

AORN and ASHRAE standards require a minimum of 20 total air exchanges per hour in the OR, with at least 4 being fresh outside air.

Question 74: Before applying the dispersive electrode, what patient assessment should the perioperative nurse perform?

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

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

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

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 76: What is the primary purpose of professional certification in Anesthesia Basics?

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

Correct answer: To validate competency and knowledge in the field

Certification validates that a professional has met established standards of knowledge and competency in Anesthesia Basics.

Question 77: A flexible endoscope used for bronchoscopy is classified as which Spaulding category, and what level of reprocessing is required?

Non-critical — intermediate-level disinfection
Critical — high-level disinfection acceptable
Semi-critical — high-level disinfection minimum (Correct answer)
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 78: When a patient refuses a blood transfusion for religious reasons before surgery, the perioperative nurse should:

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
Convince the patient to accept the transfusion for their own safety

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 79: A patient receiving spinal anesthesia suddenly develops hypotension and bradycardia. What is the priority nursing intervention?

Administer epinephrine 1 mg IV push
Elevate the patient's legs and notify anesthesia (Correct answer)
Begin chest compressions immediately
Apply supplemental oxygen only

Correct answer: Elevate the patient's legs and notify anesthesia

Leg elevation increases venous return, and notifying anesthesia allows for vasopressor and fluid administration to treat spinal-induced hypotension.

Question 80: A patient arrives to the OR without a signed informed consent. What is the perioperative nurse's FIRST documentation action?

Document the missing consent and notify the surgeon and charge nurse before proceeding (Correct answer)
Have the circulator sign as a witness and proceed
Document that the patient verbally agreed in the holding area
Proceed and document that consent was implied

Correct answer: Document the missing consent and notify the surgeon and charge nurse before proceeding

The nurse must document the absence of consent and escalate to the surgeon and charge nurse; surgery should not proceed until proper consent is obtained.

Question 81: Which type of wound closure technique uses suture placed in the subcuticular tissue to approximate skin edges without exposed suture material on the surface?

Mattress suture
Figure-of-eight suture
Interrupted percutaneous suture
Running subcuticular suture (Correct answer)

Correct answer: Running subcuticular suture

A running subcuticular (intradermal) suture is placed just below the epidermis, providing excellent cosmetic results with no surface puncture marks.

Question 82: 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)
Plain catgut
Polydioxanone (PDS) (Correct answer)
Polyglycolic acid (Dexon)

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

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

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 84: Which positioning complication is UNIQUE to the sitting (beach chair) position and not typically seen in supine cases?

Venous air embolism through open venous sinuses above heart level (Correct answer)
Sacral pressure injury
Ulnar nerve palsy
Brachial plexus stretch

Correct answer: Venous air embolism through open venous sinuses above heart level

When the operative site is above the heart, open venous sinuses can entrain air, making venous air embolism a specific and serious risk in the sitting position.

Question 85: According to AORN guidelines, when should antimicrobial prophylaxis be administered before a surgical procedure?

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

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

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

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 87: A biological indicator (BI) is placed in a sterilization load. What organism is used in steam sterilization BIs?

Staphylococcus epidermidis
Bacillus cereus spores
Clostridium sporogenes spores
Geobacillus stearothermophilus spores (Correct answer)

Correct answer: Geobacillus stearothermophilus spores

Geobacillus stearothermophilus (formerly Bacillus stearothermophilus) spores are used in steam sterilization BIs because they are highly resistant to moist heat and are the challenge organism for this sterilization method.

Question 88: Which documentation element is most critical immediately after an intraoperative adverse event or near-miss?

The surgeon's verbal statement about the event
A note that the event was discussed at the next staff meeting
Documentation that the patient was informed during recovery
An objective, factual account of events in the medical record and a facility incident report (Correct answer)

Correct answer: An objective, factual account of events in the medical record and a facility incident report

Timely, factual documentation in the medical record and a separate incident report are both required for legal, quality, and safety improvement purposes.

Question 89: What is the purpose of a sterilization load control number (lot control)?

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

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 90: What does informed consent require?

Getting any signature on a form
Explaining the procedure, risks, benefits, and alternatives to the patient (Correct answer)
Family approval only
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 91: 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
Any intraoperative complication requiring unplanned return to the OR
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)

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 92: Which AORN-recommended practice addresses smoke plume generated during laser or electrosurgical procedures?

Limiting smoke exposure to 10 minutes per procedure
Wearing standard surgical masks only
Opening OR doors to ventilate
Using a smoke evacuator at the source of plume generation (Correct answer)

Correct answer: Using a smoke evacuator at the source of plume generation

AORN requires smoke evacuators be placed within 2 cm of the plume source to capture carcinogenic and infectious aerosols before dispersal.

Question 93: When setting up a sterile field, which action correctly maintains sterility?

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

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

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

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 95: 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
Smelling the package for chemical odor
Inspecting the chemical indicator inside the package (Correct answer)
Checking the expiration date on the package

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 96: Which action by the perioperative team MOST directly reduces the risk of a retained surgical item (RSI) in the wound?

Limiting the number of personnel in the operating room
Performing standardized instrument, sponge, and sharps counts at defined intervals (Correct answer)
Using radiopaque sponges exclusively in contaminated wounds
Documenting estimated blood loss at the end of the procedure

Correct answer: Performing standardized instrument, sponge, and sharps counts at defined intervals

AORN mandates standardized counting protocols at defined intervals (opening, before closure, after closure) as the primary defense against retained surgical items.

Question 97: Which malignant hyperthermia (MH) trigger should perioperative nurses be prepared to immediately remove from the anesthesia circuit when MH is suspected?

Non-depolarizing neuromuscular blockers
Propofol and ketamine
Succinylcholine and volatile halogenated anesthetic agents (Correct answer)
Nitrous oxide

Correct answer: Succinylcholine and volatile halogenated anesthetic agents

Succinylcholine and volatile halogenated agents (e.g., sevoflurane) are the primary MH triggers and must be discontinued immediately.

Question 98: Which factor most directly increases a surgical patient's risk for pressure injury during an extended procedure?

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

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

The device is fit-tested annually like an N95
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

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 100: Why is continuing education important in Wound Management?

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

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 101: During a surgical procedure, a medication cup without a label is found on the back table. What is the correct action?

Transfer it to a labeled container
Ask the circulator what it might be
Cover the cup and continue the procedure
Discard the unlabeled medication and notify the team (Correct answer)

Correct answer: Discard the unlabeled medication and notify the team

An unlabeled medication must be discarded immediately and the surgical team notified to prevent a potential medication error.

Question 102: Which assessment finding in a post-operative patient who was in lithotomy position most suggests compartment syndrome of the lower leg?

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

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 103: 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 surgeon approves use based on clinical urgency, overriding standard checks
The package passes a visual check for holes but has no required expiration date

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

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

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

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

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 106: What is the most effective way to prevent retained surgical items?

Allowing only the surgeon to handle surgical sponges
Using disposable instruments for all procedures
Conducting a thorough surgical site cleaning
Performing a meticulous instrument and sponge count (Correct answer)

Correct answer: Performing a meticulous instrument and sponge count

The most effective strategy to prevent retained surgical items (RSIs) is to perform meticulous and systematic counts of all instruments, sponges, and sharps throughout the surgical procedure. This critical safety protocol involves counting items before the procedure, at various stages during the surgery, and again before wound closure to ensure no items are inadvertently left inside the patient. Adhering strictly to counting procedures significantly reduces the risk of serious patient harm.

Question 107: Which action should the perioperative nurse take when inspecting reusable electrosurgical instruments before a case?

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
Soak instruments in high-level disinfectant for 20 minutes regardless of prior sterilization
Inspect insulation for cracks, pinholes, or discoloration and discard instruments with any defects (Correct answer)

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 108: 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
Report the concern to the charge nurse or supervisor immediately (Correct answer)
Wait until after the case to address the situation
Allow the colleague to work and monitor them closely

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

Cleaning the floor
Proper hand hygiene (Correct answer)
Wearing gloves at all times
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 110: What is the ALARA principle in radiation safety?

All Labs And Rooms Assessed
Automated Limiting Adjustment for Radiation Applications
Always Lock And Restrict Access
As Low As Reasonably Achievable — minimize radiation exposure (Correct answer)

Correct answer: As Low As Reasonably Achievable — minimize radiation exposure

ALARA means keeping radiation doses as low as reasonably achievable while still obtaining diagnostic-quality images, balancing benefit against risk.

Question 111: 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
Document the objection and proceed anyway
Voice the concern directly to the surgeon and escalate through the chain of command if unresolved (Correct answer)
Refuse to participate and leave the OR

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

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

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

Ketamine (Correct answer)
Dexmedetomidine
Propofol
Etomidate

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 114: When a scrub technician performs a task outside their competency, the circulating RN's professional responsibility is to:

Ignore it if the surgeon approves
Report it only if an adverse event occurs
Document it after the case is complete
Intervene immediately to protect patient safety (Correct answer)

Correct answer: Intervene immediately to protect patient safety

The circulating RN maintains accountability for overall patient safety and must intervene when any team member exceeds their competency.

Question 115: 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 116: During a general anesthetic, the anesthesia provider calls for a 'rapid sequence induction' (RSI). What is the primary reason for using RSI?

To reduce the total dose of anesthetic agents required
To minimize the risk of pulmonary aspiration in patients with a full stomach (Correct answer)
To speed up the induction process for elective surgeries
To allow faster emergence from anesthesia at the end of surgery

Correct answer: To minimize the risk of pulmonary aspiration in patients with a full stomach

RSI uses rapid-onset agents and cricoid pressure to secure the airway quickly and minimize the window of aspiration risk in patients with full stomachs.

Question 117: 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 118: What is 'direct coupling' in laparoscopic electrosurgery, and why is it dangerous?

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

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 119: During sterilization monitoring, a Bowie-Dick test is specifically used to verify which parameter?

Air removal and steam penetration in pre-vacuum sterilizers (Correct answer)
Sterility assurance of the load contents
Biological indicator kill efficacy
Ethylene oxide concentration levels

Correct answer: Air removal and steam penetration in pre-vacuum sterilizers

The Bowie-Dick test evaluates the efficiency of air removal in pre-vacuum (dynamic air removal) steam sterilizers, ensuring steam can penetrate packaged items.

Question 120: During orthopedic surgery requiring a tourniquet, which complication should the perioperative nurse monitor for when the tourniquet is released?

Tourniquet pain and reperfusion syndrome (Correct answer)
Corneal abrasion
Hypothermia from cold irrigation
Hypertension and bradycardia

Correct answer: Tourniquet pain and reperfusion syndrome

Tourniquet release causes ischemic metabolites to flood the systemic circulation, potentially causing hemodynamic instability and reperfusion injury.

Question 121: 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 122: During a case, a visitor observing in the OR sneezes near the sterile field without a mask. What action should be taken?

Continue the procedure if the visitor is more than 3 feet from the field
Document the event and notify the surgeon after the case is complete
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 123: 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 124: A patient develops a sudden decrease in ETCO2 to near zero while on cardiopulmonary bypass. The most likely explanation is:

Severe bronchospasm blocking CO2 exhalation
Correct—the heart and lungs are bypassed, so no pulmonary CO2 elimination occurs (Correct answer)
Malignant hyperthermia crisis
Endotracheal tube dislodgement

Correct answer: Correct—the heart and lungs are bypassed, so no pulmonary CO2 elimination occurs

During cardiopulmonary bypass, blood is diverted away from the lungs, so no CO2 is eliminated through the endotracheal tube, causing ETCO2 to drop to near zero.

Question 125: Why should pooling of prep solutions under the patient be prevented before electrosurgery is used?

Pooled flammable or caustic solution can ignite or cause chemical burns when exposed to ESU activation (Correct answer)
Pooled solution conducts current away from the surgical site, reducing effectiveness
Pooled solution increases electrical resistance and reduces cutting efficiency
Pooled solution prevents proper adhesion of the dispersive electrode

Correct answer: Pooled flammable or caustic solution can ignite or cause chemical burns when exposed to ESU activation

Pooled prep solutions — especially alcohol-based ones — create a flammable reservoir that can ignite when the ESU is activated, and caustic solutions can cause chemical burns under the patient.

Question 126: When two scrubbed team members need to pass each other in the OR, which method maintains aseptic technique?

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

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 127: What is a Hounsfield unit?

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

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 128: Under what circumstance may a surgical count be intentionally omitted?

Counts may be skipped when the surgeon requests it to save time
In a life-threatening emergency where time does not permit a count, the omission is documented (Correct answer)
Counts are optional for procedures under 30 minutes
Counts may be skipped on pediatric patients

Correct answer: In a life-threatening emergency where time does not permit a count, the omission is documented

AORN allows omission only in documented life-threatening emergencies; the omission and rationale must be recorded, and imaging may be used postoperatively.

Question 129: A patient requires a left lateral decubitus position. Which site should have a pillow or padding placed between them?

Between the knees and ankles to prevent bony contact and pressure injuries (Correct answer)
Between the wrists only
Under the dependent shoulder only
Between the elbows only

Correct answer: Between the knees and ankles to prevent bony contact and pressure injuries

Padding between the knees and ankles prevents bony prominences from pressing against each other, reducing skin and nerve injury risk.

Question 130: In the perioperative setting, which action best reflects the RN's role in quality improvement?

Completing annual competency checklists
Attending mandatory facility fire drills
Following surgeon preference cards accurately
Participating in case debriefs and analyzing adverse event data to improve outcomes (Correct answer)

Correct answer: Participating in case debriefs and analyzing adverse event data to improve outcomes

Active participation in case debriefs and data-driven outcome analysis is the hallmark of quality improvement in perioperative practice.

Question 131: Which statement about environmental controls in the OR best supports aseptic technique?

Negative-pressure airflow prevents OR air from escaping to the corridor
Positive-pressure airflow in the OR directs air outward to prevent external contamination (Correct answer)
Positive-pressure airflow pushes clean air from the corridor into the OR
Air pressure is irrelevant because HEPA filters eliminate all microorganisms

Correct answer: Positive-pressure airflow in the OR directs air outward to prevent external contamination

ORs are maintained at positive pressure relative to corridors to push potentially contaminated air outward, reducing the risk of airborne contamination entering the sterile field.

Question 132: What is the recommended action if a surgical instrument is dropped during a procedure?

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

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 133: 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:

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)
Continue using the old product and not inform anyone
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 134: What is the nurse’s role during a fire in the operating room?

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

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 135: The concept of 'professional accountability' for a perioperative nurse means they are answerable for:

Only the tasks delegated by the surgeon
The performance of all OR team members equally
Their own nursing judgments, actions, and omissions in patient care (Correct answer)
Outcomes that are within the anesthesiologist's control

Correct answer: Their own nursing judgments, actions, and omissions in patient care

Professional accountability means the nurse is answerable for their own clinical decisions, actions, and failures to act.

Question 136: According to AORN, what is the correct order when donning sterile attire for a procedure?

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

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

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

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

The scrub person should continue if the contamination was brief
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

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 139: What is the primary purpose of cleaning instruments BEFORE sterilization?

To reduce packaging time by removing debris
To remove surface rust and improve instrument longevity
To meet Joint Commission aesthetic standards
To eliminate bioburden that can shield microorganisms from the sterilant (Correct answer)

Correct answer: To eliminate bioburden that can shield microorganisms from the sterilant

Organic soil and debris create a physical barrier that prevents the sterilant from contacting microorganisms, making cleaning the most critical pre-sterilization step.

Question 140: How should the perioperative nurse document a medication administered by the surgeon directly from the sterile field?

The nurse documents the medication name, dose, route, time, and the name of the administering surgeon (Correct answer)
Only document if the medication is a controlled substance
The surgeon documents it independently; the nurse has no obligation
Document as 'surgeon administered' without further detail

Correct answer: The nurse documents the medication name, dose, route, time, and the name of the administering surgeon

All medications administered in the OR, regardless of who gives them, must be documented with full details including drug, dose, route, time, and the administering provider.

Question 141: What is the role of a box lock in a hinged surgical instrument?

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

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 142: According to AORN, who bears the ultimate responsibility for ensuring surgical counts are performed?

The anesthesia provider who documents the procedure
The entire perioperative team, with the registered nurse accountable for the count process (Correct answer)
The surgeon as the team leader
The scrub technician who handles the instruments

Correct answer: The entire perioperative team, with the registered nurse accountable for the count process

While counting is a team responsibility, AORN holds the perioperative registered nurse accountable for ensuring the count process is performed and documented correctly.

Question 143: What hand hygiene product is preferred by AORN for routine decontamination before and after patient contact in the perioperative environment?

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

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

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

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 145: Which behavior demonstrates a perioperative nurse's commitment to lifelong learning as defined by AORN?

Pursuing CNOR certification and attending continuing education programs (Correct answer)
Delegating unfamiliar tasks to senior staff
Reading facility policy updates only when required
Relying solely on experience gained during orientation

Correct answer: Pursuing CNOR certification and attending continuing education programs

CNOR certification and ongoing continuing education reflect the professional commitment to maintaining and expanding perioperative competency.

Question 146: What is HIPAA?

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

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

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

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 148: 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 149: According to AORN guidelines, which action best prevents retained surgical items (RSIs)?

Limiting the number of personnel in the OR
Performing standardized counts at designated time points (Correct answer)
Relying on the surgeon's memory
Using only disposable items

Correct answer: Performing standardized counts at designated time points

AORN recommends standardized surgical counts at opening, before closure, and at closure to prevent RSIs.

Question 150: Which behavior by a scrubbed team member violates aseptic technique?

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

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 151: Which patient behavior in the preoperative assessment warrants further evaluation for obstructive sleep apnea (OSA) risk?

Having a BMI of 22
Reporting loud snoring and morning headaches (Correct answer)
Drinking 8 glasses of water daily
Exercising three times per week

Correct answer: Reporting loud snoring and morning headaches

Loud snoring and morning headaches are classic OSA symptoms; undiagnosed OSA significantly increases perioperative respiratory risk.

Question 152: 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 153: Which study approach is most effective for Wound Management material?

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

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 154: A patient with an implanted cardiac pacemaker is scheduled for a laparoscopic procedure using monopolar electrosurgery. What is the most important safety measure?

Disable the pacemaker before the procedure begins
Use the highest power setting to reduce activation time near the pacemaker
Place the dispersive electrode as far from the pacemaker as possible
Consult cardiology and consider using bipolar or ultrasonic energy devices instead (Correct answer)

Correct answer: Consult cardiology and consider using bipolar or ultrasonic energy devices instead

Monopolar electrosurgery can cause electromagnetic interference with pacemakers; cardiology consultation and substitution with bipolar or ultrasonic energy minimizes the risk of device malfunction.

Question 155: In the perioperative setting, which action best demonstrates a 'culture of safety'?

Any team member can stop the procedure to voice a safety concern without fear of retaliation (Correct answer)
Safety concerns are directed exclusively through the chain of command before action is taken
Team members follow safety protocols only when supervisors are present
Near-miss events are handled informally to avoid administrative burden

Correct answer: Any team member can stop the procedure to voice a safety concern without fear of retaliation

A culture of safety empowers every team member—regardless of role—to speak up, stop unsafe actions, and report near-misses without punitive consequences, which is foundational to AORN's safety framework.

Question 156: Why is continuing education important in Anesthesia Basics?

Only for re-certification requirements
It is not important after certification
To stay current with evolving standards and practices (Correct answer)
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 157: Which items are included in the standard surgical count according to AORN guidelines?

Only instruments and needles
Only soft goods like sponges and towels
Only sponges and sharps
Sponges, sharps, and instruments (Correct answer)

Correct answer: Sponges, sharps, and instruments

AORN guidelines require counting sponges, sharps (needles, blades), and instruments to prevent retained surgical items.

Question 158: When should the initial surgical count be performed according to AORN recommended practices?

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

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 159: When positioning a patient in the lateral decubitus position, an axillary roll is placed to protect which structure?

Subclavian artery
Cephalic vein
Radial nerve
Brachial plexus (Correct answer)

Correct answer: Brachial plexus

The axillary roll is placed just caudal to the axilla to prevent brachial plexus compression from the weight of the thorax.

Question 160: What is the most effective way to prevent healthcare-associated infections?

Wearing gloves at all times
Proper hand hygiene (Correct answer)
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 161: Which anesthetic agent is most commonly associated with malignant hyperthermia when used in susceptible patients?

Ketamine
Propofol
Succinylcholine (Correct answer)
Midazolam

Correct answer: Succinylcholine

Succinylcholine (and volatile inhalation agents) are the primary triggers of malignant hyperthermia in genetically susceptible individuals.

Question 162: A patient undergoing general anesthesia suddenly develops unexplained tachycardia, muscle rigidity, and a rising end-tidal CO2. The perioperative nurse's priority action is:

Notify the charge nurse and document the event
Administer oxygen and prepare dantrolene sodium (Correct answer)
Increase the volatile anesthetic concentration
Apply a cooling blanket and monitor vitals

Correct answer: Administer oxygen and prepare dantrolene sodium

These are classic signs of malignant hyperthermia; administering oxygen and preparing dantrolene are first-line responses per MH protocol.

Question 163: Which principle underlies the concept of 'first intention' wound healing relevant to perioperative patient safety?

Secondary closure should be performed immediately after debridement
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

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 164: Which statement correctly describes instrument flash sterilization (immediate-use steam sterilization)?

It is preferred over standard sterilization for all routine instruments
It eliminates the need for decontamination before the sterilization cycle
It is used only when there is no other option and must be documented and monitored (Correct answer)
It is acceptable for any instrument as long as there is a chemical indicator

Correct answer: It is used only when there is no other option and must be documented and monitored

AORN guidelines state that immediate-use steam sterilization (IUSS) is used only when no other option exists, and each cycle must be documented and monitored.

Question 165: What is the purpose of a risk assessment?

To calculate financial budgets
To assign work shifts
To track inventory levels
To identify potential hazards and determine mitigation measures (Correct answer)

Correct answer: To identify potential hazards and determine mitigation measures

Risk assessments identify potential hazards, evaluate the likelihood and severity of harm, and determine appropriate controls to minimize risk.

Question 166: 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 167: A patient is scheduled for a thyroidectomy requiring neck hyperextension. Which pre-operative condition warrants special caution and communication with the surgeon?

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

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

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

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

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

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 170: Why is accurate documentation critical in perioperative nursing?

To create a comprehensive record of the patient’s care (Correct answer)
To provide legal protection for the hospital only
To facilitate billing and reimbursement for the procedure
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 171: A circulating nurse realizes she forgot to document the final instrument count before leaving the OR. What is the correct action?

Have the surgeon add an addendum to the operative note
Leave it undocumented since the count was completed verbally
Ask the incoming nurse to document it as if she had completed the count
Return to the EHR, make a late entry labeled with the current date and time, and document the count findings (Correct answer)

Correct answer: Return to the EHR, make a late entry labeled with the current date and time, and document the count findings

A late entry must be made by the responsible nurse with the current date and time clearly labeled, documenting the count findings accurately.

Question 172: In the context of biofilm formation on surgical instruments, which statement is most accurate?

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

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

Proper hand hygiene (Correct answer)
Cleaning the floor
Wearing gloves at all times
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 174: A surgical instrument with a lumened channel requires what minimum processing classification according to Spaulding?

Semi-critical
Non-critical
Critical (Correct answer)
Intermediate

Correct answer: Critical

Lumened instruments that contact sterile tissue or the vascular system are classified as critical items requiring sterilization.

Question 175: A surgical technologist notices wet packs after a steam sterilization cycle. What is the correct response?

Reject the entire load as non-sterile and investigate the cause (Correct answer)
Allow packs to air-dry and consider them sterile if chemical indicators passed
Place packs under a heat lamp to accelerate drying
Only reject packs with visible moisture on the outer wrap

Correct answer: Reject the entire load as non-sterile and investigate the cause

Wet packs are considered compromised because moisture creates a pathway for microorganism migration through the packaging material, invalidating sterility.

Question 176: When documenting the surgical scrub technician's name on the intraoperative record, the perioperative nurse is fulfilling which primary standard?

Satisfying a physician credentialing requirement
Billing for the technician's services
Accountability by identifying all personnel present and their roles during the procedure (Correct answer)
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 177: A surgeon requests that the perioperative team skip the instrument count to save time. What is the correct nursing response?

Decline to skip the count and explain the patient safety rationale (Correct answer)
Skip the count and document the surgeon's request
Perform a partial count of only major instruments
Allow the count to be skipped if the surgery is under 30 minutes

Correct answer: Decline to skip the count and explain the patient safety rationale

Perioperative nurses are professionally obligated to perform all required counts regardless of a surgeon's request, as counts are a patient safety standard of care.

Question 178: What role does ethics play in Anesthesia Basics practice?

It only applies to managers
It only matters for legal compliance
Ethics is optional in professional settings
It guides professional conduct and protects stakeholders (Correct answer)

Correct answer: It guides professional conduct and protects stakeholders

Professional ethics provide frameworks for responsible decision-making, ensuring practitioners act in the best interest of those they serve.

Question 179: What is the fire triangle?

Three fire departments
Heat, fuel, and oxygen — the three elements needed for fire (Correct answer)
Three types of fire extinguishers
Three fire escape routes

Correct answer: Heat, fuel, and oxygen — the three elements needed for fire

The fire triangle illustrates the three elements required for combustion: heat (ignition source), fuel (combustible material), and oxygen. Removing any one element extinguishes the fire.

Question 180: The primary purpose of peer review in the perioperative nursing department is to:

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

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 181: What is the recommended practice for discarding unused controlled substances in the perioperative setting?

Returning the medication to the pharmacy unopened
Retaining for the next procedure if unopened
Discarding in the sharps container alone
Wasting with a witness and documenting the waste (Correct answer)

Correct answer: Wasting with a witness and documenting the waste

Unused controlled substances must be wasted with a witness present and the waste documented to comply with DEA regulations and prevent diversion.

Question 182: Which type of OR attire is specifically required in the semi-restricted area of the surgical suite?

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

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 183: What is the primary fire risk associated with using electrosurgery in an oxygen-enriched environment under surgical drapes?

Oxygen enrichment interferes with the REM monitoring system
Oxygen reacts with the ESU electrode to produce sparks
Elevated oxygen pressure increases ESU electrical resistance
Elevated oxygen concentration lowers the ignition temperature of draping materials, increasing fire risk (Correct answer)

Correct answer: Elevated oxygen concentration lowers the ignition temperature of draping materials, increasing fire risk

In an oxygen-enriched environment, materials such as drapes and gauze ignite more easily and burn more intensely, making electrosurgical activation in confined drape tenting a significant fire hazard.

Question 184: A circulating nurse notices a surgical sponge count discrepancy after wound closure. What is the priority action?

Wait until the patient is in the PACU to perform a final recount
Recount with a second nurse; if still discrepant, notify the surgeon before the patient is transferred (Correct answer)
Complete the operative record and report the discrepancy to the charge nurse
Inform the surgeon immediately and request an X-ray before the patient leaves the OR

Correct answer: Recount with a second nurse; if still discrepant, notify the surgeon before the patient is transferred

AORN guidelines require an immediate recount verified by a second nurse, and if still discrepant, the surgeon must be notified before the patient leaves the OR so intraoperative imaging or exploration can occur.

Question 185: When a perioperative nurse documents the patient's skin condition pre- and postoperatively, the PRIMARY purpose is to:

Record the patient's chronic skin conditions for dermatology referral
Identify and report any new skin injuries that may have occurred intraoperatively (Correct answer)
Satisfy a billing requirement only
Provide a baseline for cosmetic assessments

Correct answer: Identify and report any new skin injuries that may have occurred intraoperatively

Pre- and postoperative skin assessment documentation identifies intraoperative pressure injuries, burns, or abrasions attributable to surgical positioning or equipment.

Question 186: 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)
Position the bed first, then transfer while awake
Place patient prone before induction for airway safety
Induce prone, then intubate with fiberoptic scope

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

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

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 188: Which class of fire extinguisher is appropriate for a fire involving electrical equipment in the OR?

Class D
Class C (Correct answer)
Class B
Class A

Correct answer: Class C

Class C extinguishers are designed for electrical fires and use non-conductive agents safe around energized equipment.

Question 189: Which microorganism is most commonly associated with surgical site infections (SSIs) in perioperative patients?

Pseudomonas aeruginosa
Staphylococcus aureus (Correct answer)
Escherichia coli
Candida albicans

Correct answer: Staphylococcus aureus

Staphylococcus aureus, including MRSA strains, is the most frequently isolated pathogen in surgical site infections.

Question 190: What is the purpose of the Aldrete Scoring System used in the PACU?

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

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 191: 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
Handed off the sterile field to the circulator when not needed
On the sterile field drape near the incision site for quick access

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 192: In the Trendelenburg position, pulmonary compliance decreases primarily because:

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

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 193: Which statement about documenting use of an electrosurgical unit (ESU) is consistent with AORN guidelines?

Document the type of ESU, settings used, dispersive electrode placement site, and skin condition under the electrode (Correct answer)
Only document ESU use if a skin burn occurs
Document only the generator model number
The biomedical technician documents all ESU parameters

Correct answer: Document the type of ESU, settings used, dispersive electrode placement site, and skin condition under the electrode

AORN requires documentation of ESU type, power settings, dispersive electrode location, and skin condition at the electrode site before and after use.

Question 194: Which action demonstrates ethical responsibility in perioperative nursing?

Ensuring the patient fully understands the procedure before obtaining consent (Correct answer)
Relying on family members to explain the procedure to the patient
Delegating informed consent discussions to the surgical assistant
Confirming consent was signed without reviewing the details with the patient

Correct answer: Ensuring the patient fully understands the procedure before obtaining consent

An ethical responsibility of a perioperative nurse is to act as a patient advocate, which includes verifying that the patient has given informed consent. This means ensuring the patient fully comprehends the procedure, risks, benefits, and alternatives, and has had all their questions answered by the surgeon, before proceeding with the surgery.

Question 195: 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)
Walls first, then lights, then floors and equipment simultaneously
Floors first, then horizontal surfaces, then lights and overhead equipment
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 196: Which factor most significantly contributes to surgical site infections (SSIs)?

Type of anesthesia used
Patient’s fasting period
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 197: Which of the following is considered a 'high-alert medication' in the perioperative setting?

Saline irrigation
Sterile water for injection
Heparin (Correct answer)
Povidone-iodine prep solution

Correct answer: Heparin

Heparin is classified as a high-alert medication because errors in its administration can cause catastrophic anticoagulation events; it requires independent double-checks.

Question 198: 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 199: Which element is MOST critical to include when documenting the application of a pneumatic tourniquet?

The brand name of the tourniquet
Inflation pressure, cuff location, and inflation/deflation times (Correct answer)
The patient's blood pressure at tourniquet application
The surgeon's tourniquet preference

Correct answer: Inflation pressure, cuff location, and inflation/deflation times

AORN standards require documentation of inflation pressure, cuff location, and the times of inflation and deflation to monitor for ischemic injury.

Question 200: What is the nurse's priority responsibility during the intraoperative phase?

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

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 201: According to AORN, which is an essential element of a culture of safety in the perioperative environment?

Encouraging staff to report near-misses without fear of punishment (Correct answer)
Assigning blame to the individual who made the error
Limiting communication about errors to senior leadership only
Zero tolerance for any clinical error, with immediate disciplinary action

Correct answer: Encouraging staff to report near-misses without fear of punishment

A just culture of safety requires psychological safety for reporting near-misses so that systemic issues can be identified and corrected.

Question 202: What is the primary mechanism by which a monopolar electrosurgical unit (ESU) cuts tissue?

Cryogenic temperatures destroy tissue
Mechanical vibration disrupts cell membranes
Chemical reactions denature cellular proteins
Rapid cellular heating causes vaporization of intracellular fluid (Correct answer)

Correct answer: Rapid cellular heating causes vaporization of intracellular fluid

In monopolar electrosurgery, high-frequency electrical current generates intense heat at the active electrode tip, rapidly vaporizing intracellular fluid and causing tissue cutting.

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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Exam Rules

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Unanswered questions count as wrong — answer everything
10 pretest questions are mixed in and don't affect your score
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