Question 1: A CST professional encounters an unfamiliar situation while performing surgical anatomy by specialty duties. What is the most appropriate first action?

• Consult relevant standards, guidelines, or a qualified supervisor before proceeding (Correct answer)
• Apply a solution from an unrelated field without verification
• Proceed based on general assumptions to avoid delays
• Skip the task entirely and move to the next assignment

Correct answer: Consult relevant standards, guidelines, or a qualified supervisor before proceeding

When facing unfamiliar situations in surgical anatomy by specialty, the most appropriate action is to consult relevant standards, guidelines, or a qualified supervisor. This ensures safety, accuracy, and compliance while building professional knowledge.

Question 2: If a count cannot be reconciled after a thorough search of the field and room, what is the mandatory next step?

• Obtain an intraoperative X-ray before closing the wound (Correct answer)
• Proceed with closure and perform a re-count in the PACU
• Request a second opinion from the charge nurse before proceeding
• Document the discrepancy and close at the surgeon's discretion

Correct answer: Obtain an intraoperative X-ray before closing the wound

When a count cannot be reconciled, an intraoperative X-ray must be obtained before wound closure to identify any items retained within the surgical site.

Question 3: What does professionalism involve in the context of surgical teamwork?

• Ignoring the surgeon’s instructions when inconvenient.
• Only performing tasks assigned by the surgeon.
• Maintaining a competitive attitude against the surgical team.
• Respecting colleagues, being reliable, and performing duties to the highest standards. (Correct answer)

Correct answer: Respecting colleagues, being reliable, and performing duties to the highest standards.

In surgical teamwork, professionalism encompasses a commitment to collaborative and high-quality care. It involves treating all team members with respect, ensuring clear and effective communication, and consistently demonstrating reliability in one's duties. Performing tasks to the highest standards ensures patient safety and contributes to the overall success of the surgical procedure, fostering a cohesive and efficient operating room environment.

Question 4: A scrub tech is counting instruments before closure and finds the count is incorrect. The surgeon should be notified:

• After wound closure so as not to disrupt the procedure
• Only after a third count
• Immediately, before closure proceeds (Correct answer)
• After a second count confirms the discrepancy

Correct answer: Immediately, before closure proceeds

An incorrect count must be reported to the surgeon immediately so the operative site can be searched before closure.

Question 5: Which parameter on an electrosurgical unit (ESU) should the scrub technician verify before activating the unit?

• The light source intensity is at maximum
• The grounding pad is properly placed on the patient (Correct answer)
• The suction canister is empty
• The CO2 tank pressure is adequate

Correct answer: The grounding pad is properly placed on the patient

Proper placement of the patient return electrode (grounding pad) is essential to prevent burns at a site remote from the operative field.

Question 6: In neurosurgery, the middle meningeal artery is a branch of which vessel and runs in which cranial layer?

• Maxillary artery; epidural space (Correct answer)
• External carotid artery; subdural space
• Ophthalmic artery; epidural space
• Internal carotid artery; subarachnoid space

Correct answer: Maxillary artery; epidural space

The middle meningeal artery is a branch of the maxillary artery (from the external carotid) and runs in the epidural space; injury causes epidural hematoma.

Question 7: Which area of the surgical gown is considered NON-sterile even after proper donning?

• Chest area above the waist
• Front panel below the neck
• Sleeves from cuff to 2 inches above the elbow
• Back of the gown and axillary region (Correct answer)

Correct answer: Back of the gown and axillary region

The back of the gown and axillary regions cannot be visualized by the wearer and are therefore not considered part of the sterile zone.

Question 8: Who is responsible for performing surgical counts in the OR?

• The scrub technician alone
• The scrub technician and the circulating nurse together (Correct answer)
• The surgeon and anesthesiologist
• The circulating nurse and the charge nurse

Correct answer: The scrub technician and the circulating nurse together

Surgical counts are a shared responsibility between the scrub technician and the circulating nurse, who perform the count simultaneously and concurrently.

Question 9: When documenting activities related to surgical anatomy by specialty, which practice is considered essential for CST certification holders?

• Recording only outcomes while omitting the methods and processes used
• Keeping documentation in personal notes that are not accessible to other team members
• Completing documentation only when requested by auditors or supervisors
• Maintaining comprehensive records that include procedures, observations, results, and any anomalies (Correct answer)

Correct answer: Maintaining comprehensive records that include procedures, observations, results, and any anomalies

Comprehensive documentation that includes procedures, observations, results, and any anomalies is essential in surgical anatomy by specialty. This supports quality assurance, enables peer review, and satisfies regulatory and audit requirements.

Question 10: Which clamp on a general surgery tray is specifically designed to grasp the gallbladder during cholecystectomy?

• Pean clamp
• Babcock clamp (Correct answer)
• Allis clamp
• Kocher clamp

Correct answer: Babcock clamp

The Babcock clamp has smooth, fenestrated jaws that gently encircle hollow or delicate organs like the gallbladder without crushing them.

Question 11: What is the primary purpose of a standardized case cart system?

• To ensure all required supplies and instruments are gathered and verified before the case reaches the OR (Correct answer)
• To allow surgeons to request instruments intraoperatively without delay
• To replace the role of the sterile processing department
• To eliminate the need for preference cards

Correct answer: To ensure all required supplies and instruments are gathered and verified before the case reaches the OR

Standardized case carts are pre-assembled according to the surgeon's preference card so everything needed arrives with the case, minimizing last-minute runs.

Question 12: When setting up for an open appendectomy, which incision is most commonly used?

• McBurney incision (Correct answer)
• Kocher incision
• Pfannenstiel incision
• Midline laparotomy

Correct answer: McBurney incision

The McBurney incision is a muscle-splitting incision made at McBurney's point (1/3 the distance from ASIS to umbilicus) providing direct access to the appendix.

Question 13: During an emergency cricothyrotomy, the incision is made through which membrane?

• Cricotracheal membrane
• Tracheal ring 1–2 interspace
• Cricothyroid membrane (Correct answer)
• Thyrohyoid membrane

Correct answer: Cricothyroid membrane

The cricothyroid membrane, located between the thyroid and cricoid cartilages, is the site of incision for emergent cricothyrotomy to establish an airway.

Question 14: Ideally, the back table should be set up how far in advance of the surgical incision?

• 24 hours prior to allow all items to equilibrate
• Exactly 1 hour prior
• As close to the start of the case as practical; no more than 4 hours before the first incision (Correct answer)
• No limit, as long as the room stays closed

Correct answer: As close to the start of the case as practical; no more than 4 hours before the first incision

AORN recommends setting up the sterile field as close to the time of use as possible, with 4 hours as an accepted outer limit in most facilities.

Question 15: A trauma patient arrives with a suspected tension pneumothorax. The FIRST intervention before chest tube insertion is:

• Needle decompression at the 2nd intercostal space midclavicular line (Correct answer)
• Pericardiocentesis
• Thoracotomy tray setup
• Chest X-ray confirmation

Correct answer: Needle decompression at the 2nd intercostal space midclavicular line

Needle decompression immediately relieves the life-threatening pressure of a tension pneumothorax before a formal chest tube can be placed.

Question 16: What is the primary responsibility of a surgical technician during a procedure?

• To provide post-operative care.
• To manage the patient's anesthesia.
• To perform surgeries independently.
• To assist the surgeon and maintain sterile conditions. (Correct answer)

Correct answer: To assist the surgeon and maintain sterile conditions.

A surgical technician's primary responsibility is to prepare the operating room, ensure all instruments are sterile, and assist the surgeon during the procedure. This includes anticipating the surgeon's needs, passing instruments, and meticulously maintaining the sterile field. Their role is crucial for preventing infection and ensuring the smooth execution of surgery.

Question 17: Which suture material has memory (tendency to return to original shape), making it difficult to handle?

• Chromic gut
• Silk
• Polypropylene (Prolene) (Correct answer)
• Vicryl

Correct answer: Polypropylene (Prolene)

Polypropylene has high memory and is slippery, requiring extra throws in knots to prevent untying.

Question 18: During a Hartmann's procedure, which structure is closed as a blind end and left in the pelvis?

• Rectal stump (Correct answer)
• Descending colon
• Ileocecal valve
• Sigmoid colon

Correct answer: Rectal stump

In a Hartmann's procedure, the rectal stump is stapled or oversewn and left in place while a proximal end colostomy is created, allowing future reversal.

Question 19: In thoracic surgery, a pneumonectomy requires ligation of the pulmonary veins, which drain into the:

• Superior vena cava
• Right atrium
• Left atrium (Correct answer)
• Coronary sinus

Correct answer: Left atrium

The pulmonary veins return oxygenated blood from the lungs directly to the left atrium, and their careful ligation is essential during pneumonectomy.

Question 20: Which metric BEST reflects overall OR suite efficiency?

• Daily sterilizer load count
• Number of preference cards updated per quarter
• Total number of instruments sterilized per day
• OR utilization rate — the percentage of scheduled block time actually used for surgical cases (Correct answer)

Correct answer: OR utilization rate — the percentage of scheduled block time actually used for surgical cases

OR utilization rate measures how effectively booked time is converted to actual surgical minutes, serving as the primary indicator of suite-wide efficiency.

Question 21: Which quality assurance method is most commonly applied in surgical anatomy by specialty to verify that CST professional standards are being met?

• Structured audits, peer reviews, and performance metrics aligned with industry benchmarks (Correct answer)
• Annual reviews conducted exclusively by non-technical management
• Relying on client satisfaction surveys as the sole measure of quality
• Informal self-assessment without external validation

Correct answer: Structured audits, peer reviews, and performance metrics aligned with industry benchmarks

Structured audits, peer reviews, and performance metrics aligned with industry benchmarks are the most effective quality assurance methods in surgical anatomy by specialty, providing objective, measurable evidence that CST standards are consistently met.

Question 22: Which condition is an absolute contraindication for placing a patient in the prone position?

• Previous abdominal surgery
• Obesity
• Unstable cervical spine fracture (Correct answer)
• History of DVT

Correct answer: Unstable cervical spine fracture

An unstable cervical spine fracture is an absolute contraindication to prone positioning because turning risks catastrophic spinal cord injury.

Question 23: A sterile item falls below table level during a procedure. The correct action is to:

• Pick it up quickly if it did not touch the floor
• Wipe it with a sterile towel and return it to the field
• Use it if it fell only a short distance
• Consider it contaminated and remove it from the sterile field (Correct answer)

Correct answer: Consider it contaminated and remove it from the sterile field

Any item that falls below table level is considered contaminated and must be removed from the sterile field regardless of distance fallen.

Question 24: What is wound dehiscence?

• Excessive scar tissue formation
• Partial or complete separation of wound edges after closure (Correct answer)
• Delayed bleeding from a wound
• Infection developing under a dressing

Correct answer: Partial or complete separation of wound edges after closure

Dehiscence is the breakdown and separation of a surgical wound, which may expose underlying tissues and require reoperation.

Question 25: When the scrub technician is permanently relieved by another during a procedure, what must happen?

• Only instruments need to be re-counted at relief
• The outgoing scrub tech provides a verbal summary to the incoming tech
• A complete count must be performed at the exact time of relief (Correct answer)
• The procedure continues uninterrupted without a formal count

Correct answer: A complete count must be performed at the exact time of relief

A complete count must be performed at the time of permanent relief to formally transfer accountability for all sterile field items to the incoming scrub technician.

Question 26: When applying a pressure dressing after surgery, what is the primary goal?

• To deliver topical antibiotics
• To keep the wound dry
• To reduce dead space, prevent hematoma/seroma formation, and support wound edges (Correct answer)
• To prevent the patient from touching the wound

Correct answer: To reduce dead space, prevent hematoma/seroma formation, and support wound edges

Pressure dressings minimize dead space and fluid accumulation while supporting wound edges to reduce the risk of hematoma, seroma, and dehiscence.

Question 27: During a laparoscopic cholecystectomy, the surgical technologist should anticipate the need for which instrument to dissect the hepatocystic triangle?

• Kocher clamp
• Maryland dissector (Correct answer)
• Babcock clamp
• DeBakey forceps

Correct answer: Maryland dissector

The Maryland dissector is the standard instrument for blunt and sharp dissection of the hepatocystic triangle to expose the cystic duct and artery.

Question 28: Why is it essential for surgical instruments to be sterilized before each surgery?

• To save time during the procedure.
• To increase the lifespan of the instruments.
• To ensure that the instruments are free of harmful microorganisms. (Correct answer)
• To make the instruments easier to handle.

Correct answer: To ensure that the instruments are free of harmful microorganisms.

It is absolutely essential for surgical instruments to be sterilized before each surgery to ensure they are completely free of harmful microorganisms, including bacteria, viruses, and fungi. This critical step is the primary defense against surgical site infections (SSIs), which can lead to severe complications, prolonged hospital stays, and even death for the patient. Sterilization is non-negotiable for patient safety.

Question 29: A patient's chart indicates a known difficult airway, but the airway cart is not in the room. The surgeon wants to begin the time-out. What should the scrub tech do?

• Voice the concern about the missing airway cart during the time-out so the issue is resolved before induction (Correct answer)
• Wait until the surgeon is scrubbing to quietly mention it to the anesthesiologist
• Document the absence of the airway cart on the perioperative record
• Proceed with the time-out since airway management is the anesthesiologist's domain

Correct answer: Voice the concern about the missing airway cart during the time-out so the issue is resolved before induction

The scrub tech should raise the missing airway cart as a patient safety concern during the time-out, ensuring it is addressed before the case proceeds.

Question 30: What is the purpose of administering a prophylactic antibiotic before the surgical incision?

• To sedate the patient
• To control post-operative pain
• To treat an active infection
• To reduce the risk of surgical site infection (Correct answer)

Correct answer: To reduce the risk of surgical site infection

Prophylactic antibiotics are given within 60 minutes before incision to reduce the risk of surgical site infections (SSIs).

Question 31: During a procedure, the surgical technologist accidentally touches the non-sterile IV pole with a sterile-gloved hand. The correct response is to:

• Notify the surgeon only if the contact was prolonged
• Continue since brief contact does not cause contamination
• Immediately change gloves before continuing (Correct answer)
• Wipe the glove with a sterile towel and continue

Correct answer: Immediately change gloves before continuing

Any contact between a sterile glove and a non-sterile surface results in contamination, requiring immediate glove change.

Question 32: In the OR, 'professional boundary violations' most commonly occur when a CST:

• Reports a near-miss safety event
• Forms a personal romantic relationship with a patient (Correct answer)
• Maintains therapeutic communication with patients
• Advocates for a patient's needs to the care team

Correct answer: Forms a personal romantic relationship with a patient

Forming personal or romantic relationships with patients violates professional boundaries and exploits the inherent power imbalance.

Question 33: What is the scrub technician's responsibility for instrument counts when multiple surgeons are operating simultaneously?

• All instruments on the sterile field must be counted regardless of which surgeon used them (Correct answer)
• Instruments are counted once at the conclusion when all surgeons have finished
• Each surgeon is individually responsible for counting their own instruments
• Only the primary surgeon's instruments need to be tracked by the scrub tech

Correct answer: All instruments on the sterile field must be counted regardless of which surgeon used them

The scrub technician is accountable for the entire sterile field and must count all instruments regardless of which surgeon used them, as responsibility does not divide between surgeons.

Question 34: During case flow, 'first case on-time start' (FCOTS) is defined as:

• The patient entering the OR within 5 minutes of the scheduled time
• The surgeon scrubbing in before 7:00 AM regardless of schedule
• Incision occurring at or before the scheduled incision time for the day's first case (Correct answer)
• Anesthesia induction completed 30 minutes before scheduled start

Correct answer: Incision occurring at or before the scheduled incision time for the day's first case

FCOTS is measured by whether incision occurs on time for the first scheduled case of the day, as delays cascade through the entire OR schedule.

Question 35: Which instrument is used to approximate fascial or thick tissue edges during wound closure and included in most general surgery trays?

• Kocher (Ochsner) clamp
• Large curved Mayo scissors
• Army-Navy retractor
• Needle holder (Correct answer)

Correct answer: Needle holder

Needle holders hold suture needles securely and are essential for suturing fascial layers and closing wounds during any general surgical procedure.

Question 36: In the context of surgical asepsis & sterilization, what role does continuous professional development play for CST practitioners?

• It is required only during the first year of certification
• It ensures practitioners remain current with evolving standards, technologies, and best practices (Correct answer)
• It is optional and only needed for career advancement
• It serves primarily as a networking opportunity with no practical benefit

Correct answer: It ensures practitioners remain current with evolving standards, technologies, and best practices

Continuous professional development is essential in surgical asepsis & sterilization because it ensures CST practitioners remain current with evolving standards, technologies, and best practices, maintaining competency throughout their careers.

Question 37: What is the purpose of thrombin when used as a topical hemostatic agent on the sterile field?

• It prevents infection at bleeding sites
• It dissolves blood clots
• It promotes clot formation by converting fibrinogen to fibrin (Correct answer)
• It reduces tissue inflammation

Correct answer: It promotes clot formation by converting fibrinogen to fibrin

Topical thrombin acts locally to convert fibrinogen to fibrin, accelerating clot formation and controlling surgical bleeding.

Question 38: During a thyroidectomy, the recurrent laryngeal nerve is most vulnerable at which location?

• At the level of the thyroid isthmus
• Posterior to the inferior thyroid artery
• At its entry into the tracheoesophageal groove
• Where it crosses the Berry ligament near the cricothyroid junction (Correct answer)

Correct answer: Where it crosses the Berry ligament near the cricothyroid junction

The recurrent laryngeal nerve is most at risk where it passes beneath or through the Berry ligament just before entering the larynx at the cricothyroid joint.

Question 39: A surgeon's preference card lists a specific retractor that is unavailable. The FIRST action the scrub tech should take is:

• Notify the circulator so an acceptable substitute can be sourced or the surgeon informed before incision (Correct answer)
• Document the shortage only after the case is complete
• Substitute any similar retractor from the case cart without notifying anyone
• Cancel the case until the item is restocked

Correct answer: Notify the circulator so an acceptable substitute can be sourced or the surgeon informed before incision

Notifying the circulator before the case begins allows time to locate the item or communicate the substitute to the surgeon, preventing intraoperative delays.

Question 40: What is the role of the surgical technician in patient monitoring?

• To ensure the patient is awake and talking during the procedure.
• To perform surgeries on the patient.
• To ignore any changes in patient condition.
• To monitor vital signs and report issues to the surgical team. (Correct answer)

Correct answer: To monitor vital signs and report issues to the surgical team.

The surgical technician plays an important role in patient monitoring by observing vital signs, assessing the patient's skin integrity, and noting any changes in their condition during surgery. They are responsible for promptly reporting any concerns or deviations from normal parameters to the surgeon or anesthesia provider. This vigilance contributes to early detection and management of potential complications.

Question 41: Which of the following is essential for maintaining a sterile field during surgery?

• Not touching any surgical instruments.
• Only sterilizing the instruments.
• Sterilizing the floor around the operating table.
• Making sure all surgical instruments are sterile and handling them properly. (Correct answer)

Correct answer: Making sure all surgical instruments are sterile and handling them properly.

Maintaining a sterile field is paramount to preventing surgical site infections. A surgical technician ensures this by meticulously verifying the sterility of all instruments and supplies, and by adhering to strict aseptic techniques when handling and passing them to the surgical team. Every action must preserve the sterile environment to protect the patient.

Question 42: A CST professional encounters an unfamiliar situation while performing perioperative patient advocacy duties. What is the most appropriate first action?

• Apply a solution from an unrelated field without verification
• Proceed based on general assumptions to avoid delays
• Skip the task entirely and move to the next assignment
• Consult relevant standards, guidelines, or a qualified supervisor before proceeding (Correct answer)

Correct answer: Consult relevant standards, guidelines, or a qualified supervisor before proceeding

When facing unfamiliar situations in perioperative patient advocacy, the most appropriate action is to consult relevant standards, guidelines, or a qualified supervisor. This ensures safety, accuracy, and compliance while building professional knowledge.

Question 43: When passing a scalpel to the surgeon, the safest technique for the scrub technician is to:

• Pass it blade-first so the surgeon can immediately use it
• Place it in a neutral zone or pass it handle-first with blade pointed down (Correct answer)
• Hand it blade-up so the surgeon can grip the handle easily
• Toss it gently onto the sterile field near the surgeon

Correct answer: Place it in a neutral zone or pass it handle-first with blade pointed down

Using a neutral zone or passing handle-first with the blade pointed away protects both the surgeon and scrub tech from sharps injury.

Question 44: Which factor most directly affects the penetration of steam during autoclave sterilization?

• Color of the packaging material
• Length of the cooling cycle
• Complete removal of air from the chamber (Correct answer)
• Weight of the instrument tray

Correct answer: Complete removal of air from the chamber

Air is a poor conductor of heat and blocks steam penetration; its complete removal is essential for effective steam sterilization.

Question 45: Which retractor is commonly used during thyroid surgery to expose the operative field?

• Richardson retractor
• Army-Navy retractor (Correct answer)
• Israel retractor
• Green retractor

Correct answer: Army-Navy retractor

The Army-Navy retractor is a double-ended, shallow retractor frequently used to expose superficial structures such as the thyroid.

Question 46: Which blood product is given FIRST in a massive transfusion protocol (MTP) for trauma?

• Fresh frozen plasma alone
• Platelets alone
• Cryoprecipitate
• Packed red blood cells (pRBCs) with concurrent FFP in a 1:1 ratio (Correct answer)

Correct answer: Packed red blood cells (pRBCs) with concurrent FFP in a 1:1 ratio

Massive transfusion protocols use balanced resuscitation with pRBCs and FFP (and platelets) in a 1:1:1 ratio to prevent coagulopathy while replacing volume.

Question 47: A trauma patient requiring emergency exploratory laparotomy is found to have a bowel injury with gross contamination. The initial damage control decision is to:

• Place a diverting colostomy immediately
• Perform primary anastomosis immediately
• Irrigate and close primarily without resection
• Resect the injured bowel and leave ends stapled, defer anastomosis (Correct answer)

Correct answer: Resect the injured bowel and leave ends stapled, defer anastomosis

In damage control, injured bowel is resected and stapled closed (discontinuity resection) without anastomosis; reconstruction is deferred until the patient is stabilized.

Question 48: The concept of 'surgeon preference card maintenance' is critical to OR efficiency because:

• It is only relevant for complex cardiac cases
• Outdated cards cause wrong supplies to be pulled, creating intraoperative delays and waste (Correct answer)
• It allows hospitals to bill for more supplies
• It replaces the need for verbal surgeon communication

Correct answer: Outdated cards cause wrong supplies to be pulled, creating intraoperative delays and waste

Preference cards that reflect the surgeon's current technique and supply preferences ensure accurate case cart builds and prevent mid-case shortages.

Question 49: Which patient position places the greatest stress on the brachial plexus and should be carefully monitored during setup?

• Lateral decubitus with arm extended beyond 90 degrees (Correct answer)
• Supine with arms tucked
• Prone with arms at sides
• Lithotomy with legs level

Correct answer: Lateral decubitus with arm extended beyond 90 degrees

In lateral decubitus, arm abduction beyond 90 degrees stretches the brachial plexus, risking neuropraxia or permanent nerve injury.

Question 50: A surgeon asks the scrub tech to hand off a surgical specimen to an unlabeled container. What action best protects the patient?

• Refuse the handoff until the specimen container is properly labeled with required patient identifiers (Correct answer)
• Hand off the specimen and label the container after the case
• Accept the specimen and inform pathology verbally of the patient's identity
• Ask the circulator to label it while the handoff occurs simultaneously

Correct answer: Refuse the handoff until the specimen container is properly labeled with required patient identifiers

Specimens must be transferred only to labeled containers with two patient identifiers to prevent misidentification, which could result in wrong diagnosis or treatment.

Question 51: During a trauma laparotomy, the scrub tech notices a sponge count discrepancy at closure. The CORRECT action is:

• Ask the circulator to recount independently and proceed if the circulator agrees
• Proceed with closure and document the discrepancy post-operatively
• Assume the count is wrong and close
• Immediately notify the surgeon to halt closure and perform a search for the missing sponge (Correct answer)

Correct answer: Immediately notify the surgeon to halt closure and perform a search for the missing sponge

Any sponge count discrepancy requires immediate notification of the surgeon to stop closure until the missing item is accounted for, per patient safety standards.

Question 52: What is the correct way to pass a sharp instrument to the surgeon?

• Hand it tip-first so the surgeon receives the working end
• Toss it across the sterile field
• Announce the instrument and lay it on the drape
• Place it handle-first into the surgeon's palm (Correct answer)

Correct answer: Place it handle-first into the surgeon's palm

Sharp instruments are passed handle-first so the surgeon's hand closes around the handle, not the sharp blade.

Question 53: A sterile package stored in a sterile storage area has no expiration date label. What should the surgical technologist do?

• Do not use it; return it for reprocessing (Correct answer)
• Use it since unlabeled packages are not restricted
• Use it if it has been stored less than six months
• Use it only if the chemical indicator changed color

Correct answer: Do not use it; return it for reprocessing

All sterile packages must be properly labeled including expiration or sterilization date; unlabeled packages should not be used and must be reprocessed.

Question 54: Which of the following is a key skill for a surgical technician during surgery?

• The ability to do everything without assistance.
• The ability to anticipate the surgeon’s needs and respond quickly.
• The ability to concentrate on only one task at a time.
• The ability to keep the room sterile but ignore other tasks.

A surgical technician's primary role is to assist the surgeon efficiently. Anticipating needs means having instruments ready before being asked, which significantly streamlines the surgical process and reduces operative time. This proactive approach is crucial for maintaining a smooth workflow and ensuring patient safety.

Question 55: The surgical technologist witnesses the surgeon make a derogatory comment about the unconscious patient's appearance. What is the best course of action?

• Confront the surgeon loudly in the OR to make a point
• Report the incident to the charge nurse or supervisor after the case (Correct answer)
• Laugh along to maintain team rapport
• Ignore it since the patient cannot hear and no harm is done

Correct answer: Report the incident to the charge nurse or supervisor after the case

Disrespectful comments about anesthetized patients violate professional and ethical standards and should be reported to supervisory staff after the case.

Question 56: What should a surgical technician do in case of a surgical instrument malfunction during a procedure?

• Ignore the malfunction and continue the procedure.
• Remove the instrument from the surgery without consulting the team.
• Inform the surgeon and take action to replace or repair the instrument. (Correct answer)
• Try to fix the malfunction without informing the team.

Correct answer: Inform the surgeon and take action to replace or repair the instrument.

In the event of an instrument malfunction, the surgical technician must immediately inform the surgeon and the rest of the surgical team. Prompt communication allows for quick decision-making, enabling the technician to replace the faulty instrument with a sterile, functional one. This ensures patient safety and continuity of the procedure without unnecessary delays.

Question 57: A surgeon requests 'Weitlaner' during a deep tissue dissection. What type of instrument should the scrub tech pass?

• Self-retaining retractor (Correct answer)
• Tissue forceps
• Suction device
• Needle holder

Correct answer: Self-retaining retractor

The Weitlaner is a self-retaining retractor with sharp or blunt prongs that lock open to hold tissue apart without an assistant holding it.

Question 58: When creating a sterile field, the scrub technician should open the back table drape by:

• Cuffing the drape over gloved hands and unfolding away from the body (Correct answer)
• Unfolding it completely before placing it on the table
• Dropping it from above onto the table
• Having the circulator unfold it and hand it over

Correct answer: Cuffing the drape over gloved hands and unfolding away from the body

Cuffing the drape over gloved hands protects the sterility of the gloves while the drape is unfolded away from the body to prevent contamination.

Question 59: What does the term 'event-related sterility' mean?

• Sterility is guaranteed for exactly one year from sterilization
• Sterility depends solely on the type of sterilizer used
• A package remains sterile until an event (e.g., damage, moisture) compromises the packaging (Correct answer)
• Items are only sterile during the scheduled surgical event

Correct answer: A package remains sterile until an event (e.g., damage, moisture) compromises the packaging

Event-related sterility means a package is considered sterile indefinitely as long as the packaging remains intact and uncompromised.

Question 60: What is malignant hyperthermia, and which anesthetic agent is most commonly associated with triggering it?

• A life-threatening hypermetabolic reaction triggered by volatile agents and succinylcholine (Correct answer)
• A normal temperature increase caused by propofol
• Low body temperature from general anesthesia
• An allergic reaction to opioids

Correct answer: A life-threatening hypermetabolic reaction triggered by volatile agents and succinylcholine

Malignant hyperthermia is a rare, life-threatening hypermetabolic crisis triggered by certain volatile anesthetics and succinylcholine in genetically susceptible patients.

Question 61: The circulator is preparing to pour contrast dye onto the sterile field for an arthrogram. What must the surgical technologist verify before accepting it?

• That the dye matches the surgeon's preference card color
• That the dye is stored in a non-sterile container
• The name, concentration, and expiration date of the agent (Correct answer)
• That the dye is room temperature

Correct answer: The name, concentration, and expiration date of the agent

Before accepting any medication or contrast agent, the scrub tech must verify the drug name, concentration, and expiration date with the circulator.

Question 62: A surgical technologist notices a surgeon consistently skips a required timeout step before incision. What is the most appropriate action?

• Ignore it to avoid conflict with the surgeon
• Report the pattern to the charge nurse or supervisor (Correct answer)
• Refuse to scrub in on that surgeon's future cases
• Document it privately but take no further action

Correct answer: Report the pattern to the charge nurse or supervisor

Reporting recurring safety protocol violations to a supervisor upholds patient safety and professional accountability.

Question 63: Which instrument is used to facilitate passage of a suture around a vessel or deep structure?

• Babcock clamp
• Allis clamp
• Sponge stick
• Right-angle (Mixter) clamp (Correct answer)

Correct answer: Right-angle (Mixter) clamp

A right-angle (Mixter) clamp has a 90-degree jaw that passes around vessels or ducts to grasp a suture or ligature for ligation.

Question 64: Which instrument is used to remove bone wax from bone surfaces during orthopedic or neurosurgical procedures?

• Periosteal elevator (Correct answer)
• Kerrison rongeur
• Lempert rongeur
• Curette

Correct answer: Periosteal elevator

A periosteal elevator strips and lifts periosteum from bone; it is also used to apply and remove bone wax during surgery.

Question 65: During a laparoscopic inguinal hernia repair (TAPP), the 'triangle of doom' is avoided because it contains which critical structure?

• Obturator nerve and vessels
• Vas deferens and gonadal vessels
• Inferior epigastric vessels
• External iliac vessels and femoral nerve (Correct answer)

Correct answer: External iliac vessels and femoral nerve

The triangle of doom is bounded by the vas deferens and gonadal vessels; the external iliac vessels and femoral nerve lie within it and must not be stapled or clipped.

Question 66: How should a surgical technician ensure the proper maintenance of surgical equipment?

• By only using the equipment once and then discarding it.
• By leaving equipment out in the operating room for convenience.
• By regularly inspecting and sterilizing instruments and ensuring proper storage. (Correct answer)
• By ignoring maintenance until it is needed.

Correct answer: By regularly inspecting and sterilizing instruments and ensuring proper storage.

A surgical technician ensures the proper maintenance of surgical equipment by regularly inspecting instruments for damage or wear, meticulously sterilizing them according to established protocols, and ensuring they are stored correctly. This diligent routine extends the lifespan of the equipment, prevents malfunctions during surgery, and is paramount for infection control and patient safety. Consistent maintenance guarantees equipment readiness and reliability.

Question 67: Who is responsible for documenting surgical count results in the perioperative record?

• The anesthesiologist documents counts in the anesthesia record
• The surgeon documents counts in the operative report
• The scrub technician records all count data
• The circulating nurse documents counts in the perioperative nursing record (Correct answer)

Correct answer: The circulating nurse documents counts in the perioperative nursing record

The circulating nurse is responsible for documenting count results, any discrepancies, and corrective actions taken in the perioperative nursing record.

Question 68: A scrub technician notices a small tear in the sterile drape covering the back table. The correct action is to:

• Reinforce with sterile tape and continue
• Cover the tear with a sterile towel and continue
• Report to circulator and document only
• Remove all items and re-drape with new sterile drape (Correct answer)

Correct answer: Remove all items and re-drape with new sterile drape

Any compromise to sterile draping requires complete replacement because the entire field is considered contaminated.

Question 69: In shoulder arthroplasty, the axillary nerve is at greatest risk during which surgical step?

• Glenoid exposure and reaming
• Detachment of the subscapularis tendon
• Humeral head osteotomy
• Inferior capsular release (Correct answer)

Correct answer: Inferior capsular release

The axillary nerve courses 5–7 mm inferior to the glenohumeral joint capsule and is most vulnerable during inferior capsular release.

Question 70: What is the role of a surgical technician in instrument management?

• To hand instruments to the surgeon without considering their condition.
• To avoid handling the surgical instruments.
• To organize instruments but not sterilize them.
• To ensure all instruments are sterilized and organized for the procedure. (Correct answer)

Correct answer: To ensure all instruments are sterilized and organized for the procedure.

The surgical technician's role in instrument management is critical for patient safety and surgical efficiency. They are responsible for ensuring all instruments are meticulously sterilized before use to prevent infection and are organized on the sterile field for easy access. Proper management ensures the surgeon has the correct, functional instruments readily available throughout the procedure.

Question 71: What is 'knot security' in suture terminology?

• The number of throws needed to form a square knot
• The ability of a suture to hold a knot without slipping or untying (Correct answer)
• The speed at which a suture is tied
• The tensile strength of the suture material

Correct answer: The ability of a suture to hold a knot without slipping or untying

Knot security refers to the suture material's ability to maintain a tied knot without slippage, which is especially important with monofilament sutures.

Question 72: A CST who reports a coworker's unsafe practice to a supervisor, resulting in disciplinary action, is protected under which concept?

• Assumption of risk
• Whistleblower protections (Correct answer)
• Res ipsa loquitur
• Respondeat superior

Correct answer: Whistleblower protections

Whistleblower protections shield healthcare workers from retaliation when they report unsafe or unethical practices.

Question 73: In urology, during a nephrectomy the renal hilum is approached and vessels controlled. Which vessel is typically ligated FIRST to reduce blood loss?

• Gonadal vein
• Renal artery (Correct answer)
• Renal vein
• Inferior adrenal artery

Correct answer: Renal artery

The renal artery is ligated first to prevent engorgement of the kidney; ligating the vein first causes the kidney to fill with blood from continued arterial inflow.

Question 74: How should a surgical technician handle a sterile instrument tray during the procedure?

• By ensuring the tray is passed to the surgeon without breaking sterile technique. (Correct answer)
• By leaving the tray on the floor to keep it clean.
• By covering the tray with a non-sterile cloth.
• By touching the tray only with sterile gloves.

Correct answer: By ensuring the tray is passed to the surgeon without breaking sterile technique.

When handling a sterile instrument tray, a surgical technician must always maintain sterile technique to prevent contamination. This involves using sterile gloves, avoiding contact with non-sterile surfaces, and carefully passing instruments to the surgeon or other sterile team members without compromising the sterile field. Proper handling is critical for patient safety.

Question 75: Which item is the scrub technician responsible for reviewing BEFORE opening sterile supplies?

• The anesthesia record
• The surgeon's preference card and the procedure consent form to confirm correct procedure and side (Correct answer)
• The PACU nurse assignment sheet
• The hospital's annual budget report

Correct answer: The surgeon's preference card and the procedure consent form to confirm correct procedure and side

Reviewing the preference card and consent form ensures the correct supplies are opened for the correct procedure and laterality, preventing wrong-site or wrong-procedure setups.

Question 76: When using a harmonic scalpel, energy is transmitted to tissue through which mechanism?

• Radiofrequency electrical current
• Microwave energy
• Laser photons
• Ultrasonic vibration (Correct answer)

Correct answer: Ultrasonic vibration

The harmonic scalpel uses ultrasonic vibration (55,500 Hz) to simultaneously cut and coagulate tissue with minimal thermal spread.

Question 77: What is the significance of the color violet on an absorbable suture package?

• It is used to dye undyed sutures for visibility (Correct answer)
• It indicates the suture is coated
• It signifies rapid absorption
• It indicates the suture is braided

Correct answer: It is used to dye undyed sutures for visibility

Violet-dyed absorbable sutures (such as coated Vicryl) are colored to enhance visibility in tissue during placement.

Question 78: In the context of suture & staple materials, what role does continuous professional development play for CST practitioners?

• It serves primarily as a networking opportunity with no practical benefit
• It is optional and only needed for career advancement
• It is required only during the first year of certification
• It ensures practitioners remain current with evolving standards, technologies, and best practices (Correct answer)

Correct answer: It ensures practitioners remain current with evolving standards, technologies, and best practices

Continuous professional development is essential in suture & staple materials because it ensures CST practitioners remain current with evolving standards, technologies, and best practices, maintaining competency throughout their careers.

Question 79: Which characteristic distinguishes a reverse cutting needle from a conventional cutting needle?

• The cutting edge is on the outer curve instead of the inner curve (Correct answer)
• It has no point
• It has a triangular body with four edges
• It is blunt-tipped

Correct answer: The cutting edge is on the outer curve instead of the inner curve

A reverse cutting needle has the third cutting edge on the outer curvature, reducing the risk of tissue cut-out compared to conventional cutting needles.

Question 80: Proper instrument passing technique during surgery is important for efficiency because:

• It impresses the surgical resident
• It ensures the instrument count is always correct
• Anticipating the surgeon's needs and passing instruments decisively reduces hesitation and operative time (Correct answer)
• It replaces the need for a preference card

Correct answer: Anticipating the surgeon's needs and passing instruments decisively reduces hesitation and operative time

Confident, anticipatory instrument passing keeps the operative tempo high and minimizes the surgeon's distraction between maneuvers.

Question 81: Which solution is used to confirm a patient's identity and correct surgical site before incision under the Universal Protocol?

• Anesthesia induction record
• OR schedule printout
• Surgical safety checklist Time-Out (Correct answer)
• Preoperative nursing assessment

Correct answer: Surgical safety checklist Time-Out

The Time-Out, part of the Universal Protocol, is the final verification step performed immediately before incision to confirm patient identity, site, and procedure.

Question 82: A CST accidentally contaminates the sterile field and says nothing to avoid slowing down the surgery. This violates which principle?

• Veracity (Correct answer)
• Beneficence
• Justice
• Autonomy

Correct answer: Veracity

Veracity requires honesty; failing to report a sterile field contamination deceives the team and endangers the patient.

Question 83: What is the purpose of a Jackson-Pratt (JP) drain placed at the end of a surgical procedure?

• To measure intraabdominal pressure
• To irrigate the wound with saline
• To deliver IV fluids into the wound
• To remove accumulated blood, serum, or fluid from the surgical site using low-pressure suction (Correct answer)

Correct answer: To remove accumulated blood, serum, or fluid from the surgical site using low-pressure suction

A JP drain uses a compressible bulb to create gentle suction that evacuates postoperative fluid accumulation (seroma, hematoma) from the wound site.

Question 84: When documenting activities related to instrument tray assembly, which practice is considered essential for CST certification holders?

• Keeping documentation in personal notes that are not accessible to other team members
• Recording only outcomes while omitting the methods and processes used
• Maintaining comprehensive records that include procedures, observations, results, and any anomalies (Correct answer)
• Completing documentation only when requested by auditors or supervisors

Correct answer: Maintaining comprehensive records that include procedures, observations, results, and any anomalies

Comprehensive documentation that includes procedures, observations, results, and any anomalies is essential in instrument tray assembly. This supports quality assurance, enables peer review, and satisfies regulatory and audit requirements.

Question 85: During a colectomy, which structure must be identified and preserved as it courses near the inferior mesenteric artery?

• Gonadal vein
• Lumbar lymphatic trunk
• Sympathetic hypogastric plexus
• Left ureter (Correct answer)

Correct answer: Left ureter

The left ureter crosses the left common iliac artery near the IMA origin and must be identified before ligation of the inferior mesenteric artery to prevent ureteral injury.

Question 86: A surgical technologist who witnesses suspected abuse of a pediatric patient is ethically and legally obligated to:

• Confront the suspected abuser directly
• Maintain patient confidentiality and say nothing
• Wait for the surgeon to make the determination
• Report suspicions to the charge nurse or social worker (Correct answer)

Correct answer: Report suspicions to the charge nurse or social worker

Surgical technologists are mandated reporters in most states and must report suspected child abuse to the appropriate party.

Question 87: What is the role of a surgical technician in sterilization?

• Ensuring all instruments are sterilized before use in surgery. (Correct answer)
• Sterilizing only the operating room furniture.
• Sterilizing the patient's body.
• Sterilizing surgical gloves.

Correct answer: Ensuring all instruments are sterilized before use in surgery.

Surgical technicians are fundamental to infection control, with a key role in ensuring that all surgical instruments and supplies are properly sterilized. They are responsible for preparing, packaging, and sterilizing instruments according to strict protocols. This prevents the transmission of pathogens to patients, safeguarding their health during surgery.

Question 88: While preparing the sterile field, the scrub tech learns the patient is a Jehovah's Witness who has refused blood products. The surgeon has not updated the preference card to reflect this. What should the scrub tech do?

• Proceed with a standard setup since the surgeon manages intraoperative decisions
• Assume the anesthesiologist has already addressed the blood refusal
• Notify the circulator and surgeon so the team can plan for blood conservation techniques and confirm the patient's wishes are documented (Correct answer)
• Set up blood products on standby in case of emergency

Correct answer: Notify the circulator and surgeon so the team can plan for blood conservation techniques and confirm the patient's wishes are documented

The scrub tech must communicate the blood refusal to the team so bloodless surgery techniques can be prepared and the patient's documented wishes are respected intraoperatively.

Question 89: A sponge count discrepancy occurs at wound closure. What is the correct immediate action?

• Assume the count was wrong and close
• Document the discrepancy and proceed
• Inform the surgeon, recount, and search the field before closing (Correct answer)
• Close the wound and obtain an X-ray in recovery

Correct answer: Inform the surgeon, recount, and search the field before closing

A count discrepancy requires immediate notification of the surgeon, a thorough recount, and systematic search of the field, drapes, and floor before closure.

Question 90: Which needle body shape is best suited for suturing in deep, confined cavities?

• Half-curved
• 3/8 circle
• Straight (Keith)
• 5/8 circle (Correct answer)

Correct answer: 5/8 circle

A 5/8 circle needle requires less wrist rotation, making it ideal for deep, confined spaces like the pelvis or bladder.

Question 91: Which personal protective equipment (PPE) is required for the surgical technologist when irrigating a wound with pressure?

• Mask and gloves only
• Face shield alone
• Sterile gown, gloves, mask, and eye protection (Correct answer)
• Sterile gloves only

Correct answer: Sterile gown, gloves, mask, and eye protection

High-pressure irrigation generates aerosols and splatter, requiring full PPE including eye protection in addition to sterile gown and gloves.

Question 92: A family member approaches the scrub tech in the hallway and asks for an update on their relative's surgery. What is the appropriate response?

• Explain that the surgery is progressing without complications
• Direct the family member to the waiting room liaison or charge nurse (Correct answer)
• Share the estimated completion time based on the schedule
• Provide a brief reassuring status update to ease family anxiety

Correct answer: Direct the family member to the waiting room liaison or charge nurse

The scrub tech should redirect family members to the designated waiting room liaison or circulating nurse who is authorized to provide updates while maintaining HIPAA compliance.

Question 93: Which saw is most commonly used for sternotomy during cardiac surgery?

• Oscillating saw (Correct answer)
• Gigli saw
• Sagittal saw
• Stryker saw

Correct answer: Oscillating saw

An oscillating (reciprocating) power sternal saw is used to divide the sternum along the midline for cardiac access.

Question 94: When donning sterile gloves using the closed-glove technique, what is the key principle that prevents contamination?

• Gloves are applied before the sterile gown
• A circulator assists by holding the glove open
• Gloves are applied immediately after surgical scrub without drying
• The hands never extend past the cuffs of the gown during gloving (Correct answer)

Correct answer: The hands never extend past the cuffs of the gown during gloving

In the closed-glove technique, the scrubbed hands remain inside the gown sleeves at all times until the gloves are fully seated, preventing unsterile skin contact.

Question 95: Which suture is made from polytetrafluoroethylene (PTFE) and used in vascular and cardiac surgery?

• Ethibond
• Gore-Tex (CV-PTFE) (Correct answer)
• Maxon
• Surgipro

Correct answer: Gore-Tex (CV-PTFE)

Gore-Tex suture is made from expanded PTFE (ePTFE), which is highly biocompatible and used in cardiovascular procedures.

Question 96: Which sterilization method is most appropriate for heat-sensitive optic instruments such as laparoscopes?

• Steam autoclave at 270°F
• Flash (Immediate Use) steam sterilization
• Ethylene oxide (EO) gas sterilization (Correct answer)
• Dry heat oven sterilization

Correct answer: Ethylene oxide (EO) gas sterilization

EO gas sterilizes at low temperatures and is the method of choice for heat- and moisture-sensitive optics and delicate instruments.

Question 97: Which instrument measures the depth of a body cavity, such as the uterine cavity?

• Tenaculum
• Speculum
• Uterine sound (Correct answer)
• Curette

Correct answer: Uterine sound

A uterine sound is a long, graduated probe inserted to measure the depth and direction of the uterine cavity.

Question 98: When performing room turnover, the scrub tech should remove the sterile drapes by:

• Pulling drapes sharply upward to dislodge them quickly
• Shaking drapes out over the OR table before discarding
• Rolling them away from themselves toward the patient to contain debris and prevent dispersal of contaminants (Correct answer)
• Leaving drapes for environmental services to remove

Correct answer: Rolling them away from themselves toward the patient to contain debris and prevent dispersal of contaminants

Rolling drapes away from oneself toward the patient contains blood, tissue, and sharps within the drape bundle, reducing contamination spread during turnover.

Question 99: The Zone III of retroperitoneal hematoma in blunt trauma is located in the:

• Perirenal (supramesocolic) region
• Mesenteric root region
• Hepatoduodenal ligament region
• Pelvic (infraperitoneal) region (Correct answer)

Correct answer: Pelvic (infraperitoneal) region

Zone III retroperitoneal hematomas are pelvic in origin, typically from pelvic fractures, and are generally managed non-operatively or with angioembolization.

Question 100: Why is it important to monitor a patient’s vital signs during surgery?

• To avoid the need for anesthesia.
• To make the patient feel more comfortable.
• To help the surgeon complete the procedure faster.
• To ensure the patient's health is stable and intervene when necessary. (Correct answer)

Correct answer: To ensure the patient's health is stable and intervene when necessary.

Monitoring a patient's vital signs during surgery provides critical real-time data about their physiological status, such as heart rate, blood pressure, and oxygen saturation. This continuous assessment allows the surgical team to detect any deviations from normal, indicating potential complications or instability. Prompt intervention based on these vital signs is essential to maintain the patient's health and ensure a safe surgical outcome.

Question 101: Which of the following is a fundamental principle of suture & staple materials as it applies to Certified Surgery Technician?

• Systematic evaluation and adherence to established industry standards (Correct answer)
• Avoiding documentation to streamline workflow efficiency
• Prioritizing speed of completion over accuracy and compliance
• Relying solely on personal experience without reference to guidelines

Correct answer: Systematic evaluation and adherence to established industry standards

A fundamental principle of suture & staple materials in Certified Surgery Technician is the systematic evaluation and adherence to established industry standards, which ensures consistency, quality, and regulatory compliance across all professional activities.

Question 102: During an anterior cervical discectomy and fusion (ACDF), retraction of the carotid sheath laterally exposes which structure that must be protected medially?

• Thoracic duct
• Vertebral artery
• Esophagus and trachea (Correct answer)
• Phrenic nerve

Correct answer: Esophagus and trachea

Medial structures—the esophagus and trachea—are retracted medially during ACDF; injury to the esophagus is a serious and potentially life-threatening complication.

Question 103: What is the purpose of using a chemical indicator (CI) Class 5 integrating indicator?

• To verify the sterilizer was turned on
• To monitor only temperature
• To react to all critical parameters over the full cycle, similar to a biological indicator (Correct answer)
• To replace biological indicators entirely

Correct answer: To react to all critical parameters over the full cycle, similar to a biological indicator

Class 5 integrating indicators respond to all critical sterilization parameters (time, temperature, steam) across the entire cycle, providing strong correlation to BI results.

Question 104: The correct method for passing a sharp instrument to a surgeon on the sterile field is:

• Neutral zone (hands-free) technique placing the instrument in a designated safe zone (Correct answer)
• Placing it on the back table for the surgeon to retrieve
• Tossing it gently to the surgeon
• Hand-to-hand direct transfer with eye contact

Correct answer: Neutral zone (hands-free) technique placing the instrument in a designated safe zone

The neutral zone or hands-free technique reduces sharps injuries by placing instruments in a predetermined area rather than direct hand-to-hand transfer.

Question 105: A patient's informed consent form is missing a signature. What is the surgical technologist's most appropriate action?

• Proceed if the patient verbally consents
• Witness the patient signing in the OR holding area
• Notify the surgeon and circulating nurse before proceeding (Correct answer)
• Have the anesthesia provider obtain the signature

Correct answer: Notify the surgeon and circulating nurse before proceeding

The surgical technologist should notify the surgeon and circulating nurse; the surgeon is responsible for obtaining informed consent before surgery proceeds.

Question 106: During a craniotomy for a pterional approach, which anatomical fissure is opened to access the circle of Willis and the anterior communicating artery?

• Lateral (Sylvian) fissure (Correct answer)
• Choroidal fissure
• Calcarine fissure
• Interhemispheric fissure

Correct answer: Lateral (Sylvian) fissure

The Sylvian (lateral) fissure is opened during a pterional craniotomy to access the circle of Willis, basilar tip, and anterior communicating artery aneurysms.

Question 107: Which sterilization method is most appropriate for heat-sensitive fiber optic cables?

• Ethylene oxide (EtO) gas (Correct answer)
• Dry heat oven at 160°C
• Steam autoclave at 132°C
• Flash sterilization

Correct answer: Ethylene oxide (EtO) gas

Ethylene oxide gas sterilization is used for heat-sensitive items like fiber optic cables because it operates at low temperatures.

Question 108: A trauma patient requires emergency thoracotomy for a penetrating cardiac injury. The scrub tech should prepare which suture to repair a ventricular laceration?

• 3-0 silk on a cutting needle
• 0-chromic gut on a cutting needle
• 2-0 or 3-0 pledgeted prolene (polypropylene) on a tapered needle (Correct answer)
• 4-0 Vicryl on a tapered needle

Correct answer: 2-0 or 3-0 pledgeted prolene (polypropylene) on a tapered needle

Pledgeted polypropylene suture provides secure, hemostatic closure of ventricular lacerations; pledgets distribute tension and prevent suture pull-through in friable myocardium.

Question 109: When should the initial surgical count be performed?

• After the patient is draped and before the first incision (Correct answer)
• After anesthesia induction but before patient positioning
• After the surgeon scrubs in but before patient arrival
• After the first incision is made

Correct answer: After the patient is draped and before the first incision

The initial count is performed after the sterile field is established and before the first incision to create a baseline accounting of all items.

Question 110: Which principle guides the placement of sterile items relative to the edge of a sterile drape?

• The 1-inch border at the drape edge is considered contaminated and no items should be placed there (Correct answer)
• Only heavy instruments may be placed at the drape edge
• The edge is sterile only if it is folded under
• Items may extend to within 1 inch of the drape edge

Correct answer: The 1-inch border at the drape edge is considered contaminated and no items should be placed there

The outermost 1-inch border of a sterile drape is considered contaminated because it contacts the unsterile table edge.

Question 111: Which concept refers to a surgical technologist's duty to keep promises and honor commitments to patients and colleagues?

• Nonmaleficence
• Autonomy
• Fidelity (Correct answer)
• Justice

Correct answer: Fidelity

Fidelity is the ethical principle of keeping promises and being faithful to professional commitments.

Question 112: Which instrument is used to approximate wound edges for skin closure without sutures?

• Michel clip applier
• Skin stapler (Correct answer)
• Towel clip
• Allis clamp

Correct answer: Skin stapler

A skin stapler applies stainless steel staples to rapidly approximate skin edges as an alternative to suture closure.

Question 113: What is the primary benefit of a 'parallel induction' model in the OR suite?

• It eliminates the need for a PACU
• It allows two surgeons to operate on the same patient simultaneously
• Anesthesia is induced in an induction room while the prior case is closing, eliminating anesthesia setup time from OR turnover (Correct answer)
• It allows the scrub tech to skip the pre-case equipment check

Correct answer: Anesthesia is induced in an induction room while the prior case is closing, eliminating anesthesia setup time from OR turnover

Parallel induction decouples anesthesia preparation from OR turnover, so the patient is fully induced and ready to enter the room as soon as it is cleaned and set.

Question 114: Which layer of the abdominal wall is typically closed with a heavy absorbable or permanent suture to provide the strongest fascial closure?

• Subcutaneous fat
• Peritoneum only
• Fascia (e.g., anterior rectus sheath) (Correct answer)
• Skin

Correct answer: Fascia (e.g., anterior rectus sheath)

The fascial layer provides the structural strength of the abdominal wall and is closed with strong absorbable or permanent suture to prevent hernia formation.

Question 115: During a laparoscopic cholecystectomy, the scrub tech notices the laparoscope is fogging repeatedly. The MOST efficient intraoperative solution is:

• Warming the scope tip or applying anti-fog solution to clear the lens without interrupting flow (Correct answer)
• Asking the surgeon to proceed without visualization
• Requesting a full scope exchange from SPD, halting the case
• Documenting the issue and addressing it post-case

Correct answer: Warming the scope tip or applying anti-fog solution to clear the lens without interrupting flow

Warming the scope tip or using anti-fog solution is the standard rapid fix that restores visualization without requiring a scope exchange or case delay.

Question 116: A surgeon asks for a 'free tie.' What does this mean?

• A suture with two needles
• A suture on a needle for deep ligation
• A preformed loop suture
• A strand of suture material without a needle used to tie off a vessel (Correct answer)

Correct answer: A strand of suture material without a needle used to tie off a vessel

A free tie (tie on a pass) is a length of suture without a needle, used to tie off vessels or pedicles directly.

Question 117: The recommended maximum temperature for storing sterile packages in a sterile storage room is:

• 90°F (32°C)
• Temperature has no effect on sterility
• 50°F (10°C)
• 75°F (24°C) (Correct answer)

Correct answer: 75°F (24°C)

AAMI recommends sterile storage areas be maintained at or below 75°F (24°C) with controlled humidity to preserve package integrity.

Question 118: Which ethical principle requires a surgical technologist to act in the patient's best interest even when the patient cannot speak for themselves?

• Autonomy
• Justice
• Beneficence (Correct answer)
• Veracity

Correct answer: Beneficence

Beneficence means acting in the best interest of the patient, especially when they are unable to advocate for themselves.

Question 119: A Jackson-Pratt (JP) drain differs from a Penrose drain in that it:

• Drains bile specifically
• Is used only in the thoracic cavity
• Is made of latex
• Uses active closed-suction drainage (Correct answer)

Correct answer: Uses active closed-suction drainage

A Jackson-Pratt drain uses a collapsible bulb to create negative pressure, providing active closed-suction drainage of wound fluid.

Question 120: On a mayo stand, where should the sterile field boundary be considered to begin?

• At the exact edge of the mayo stand cover
• At the instrument clamps attached to the drape
• One inch from the edge of the drape on all sides (Correct answer)
• Two inches below the top surface

Correct answer: One inch from the edge of the drape on all sides

The sterile field extends to one inch from the edges of the mayo stand drape, which are considered non-sterile border zones.

Question 121: Which absorbable suture is commonly used for bowel anastomosis and mucosal closures due to its predictable absorption profile?

• Stainless steel
• Silk
• Polypropylene (Prolene)
• Polyglycolic acid (Vicryl) (Correct answer)

Correct answer: Polyglycolic acid (Vicryl)

Vicryl (polyglycolic acid) is a synthetic absorbable suture widely used for GI anastomoses and mucosal closures because it maintains tensile strength for approximately 3 weeks.

Question 122: What is the primary ethical obligation of a CST professional when a conflict of interest arises during trauma & emergency surgery activities?

• Disclose the conflict to all relevant parties and recuse from the decision if necessary (Correct answer)
• Resolve the conflict privately without informing stakeholders
• Ignore the conflict if it does not directly affect the current task
• Proceed while favoring the outcome that benefits the professional personally

Correct answer: Disclose the conflict to all relevant parties and recuse from the decision if necessary

The primary ethical obligation when a conflict of interest arises in trauma & emergency surgery is to disclose it to all relevant parties and, if necessary, recuse from the decision. This maintains professional integrity and stakeholder trust.

Question 123: Which quality assurance method is most commonly applied in or efficiency & case flow to verify that CST professional standards are being met?

• Structured audits, peer reviews, and performance metrics aligned with industry benchmarks (Correct answer)
• Relying on client satisfaction surveys as the sole measure of quality
• Annual reviews conducted exclusively by non-technical management
• Informal self-assessment without external validation

Correct answer: Structured audits, peer reviews, and performance metrics aligned with industry benchmarks

Structured audits, peer reviews, and performance metrics aligned with industry benchmarks are the most effective quality assurance methods in or efficiency & case flow, providing objective, measurable evidence that CST standards are consistently met.

Question 124: Which instrument on a vascular tray is used to remove thrombus from the lumen of a blood vessel?

• DeBakey forceps
• Bulldog clamp
• Potts scissors
• Fogarty balloon catheter (Correct answer)

Correct answer: Fogarty balloon catheter

The Fogarty balloon catheter is inserted past the clot, inflated, and withdrawn to mechanically extract thrombus from vessels.

Question 125: Which personal protective equipment is required when handling items being prepared for EtO sterilization?

• Standard exam gloves and face mask
• No PPE needed if the EtO chamber is sealed
• Sterile gloves only
• Gloves, gown, and eye protection due to EtO toxicity (Correct answer)

Correct answer: Gloves, gown, and eye protection due to EtO toxicity

EtO is a toxic, carcinogenic gas; handlers must wear gloves, gown, and eye protection to prevent exposure.

Question 126: When assembling a tray for a procedure requiring magnification, the scrub technician should include which type of instruments?

• Large bone-holding forceps
• Micro-instruments with smooth, fine-tipped jaws (Correct answer)
• Wide-blade retractors
• Standard heavy-tissue clamps

Correct answer: Micro-instruments with smooth, fine-tipped jaws

Microsurgery requires delicate micro-instruments with fine tips capable of handling tiny structures without crushing or tearing.

Question 127: During positioning for a prolonged spine case, the scrub tech notices the patient's arm is resting against a metal bed rail without padding. What is the priority action?

• Assume the anesthesiologist has already assessed all pressure points
• Alert the circulator before draping so padding can be added (Correct answer)
• Note it in the count sheet as a positioning concern
• Inform the surgeon after the incision is made

Correct answer: Alert the circulator before draping so padding can be added

The scrub tech should immediately alert the circulator so padding is added before draping, preventing a positioning injury from developing during the prolonged case.

Question 128: During OR room turnover, used sharps (needles, blades) should be disposed of by:

• Placing them in a sterile basin until terminal cleaning
• The scrub technician removing them with forceps directly into a sharps container without recapping (Correct answer)
• Recapping and placing in regular trash for efficiency
• Leaving them for EVS staff to handle

Correct answer: The scrub technician removing them with forceps directly into a sharps container without recapping

OSHA mandates that sharps be placed uncapped into an approved sharps container using mechanical means such as forceps to prevent needlestick injuries.

Question 129: The TA (thoracoabdominal) stapler applies staples in what configuration?

• Triple rows
• Circular pattern
• Double staggered rows (Correct answer)
• Single row

Correct answer: Double staggered rows

The TA stapler applies two staggered rows of staples simultaneously to ensure a secure, hemostatic closure.

Question 130: Which imaging study is considered the gold standard for identifying solid organ injuries in a hemodynamically STABLE trauma patient?

• Plain abdominal X-ray
• Diagnostic peritoneal lavage (DPL)
• FAST ultrasound
• CT scan of the abdomen and pelvis with IV contrast (Correct answer)

Correct answer: CT scan of the abdomen and pelvis with IV contrast

CT of the abdomen and pelvis with IV contrast provides detailed anatomic information about solid organ injuries, vascular injury, and free fluid in stable trauma patients.

Question 131: Which instrument is used to grasp and hold tissue during dissection?

• Metzenbaum scissors
• Needle driver
• Retractor
• Tissue forceps (Correct answer)

Correct answer: Tissue forceps

Tissue forceps are designed to grasp and hold tissue securely during surgical dissection.

Question 132: How should a sterile team member respond if their gown becomes wet during a procedure?

• Cover the wet area with a sterile towel
• Apply sterile drapes over the area and continue
• Continue the procedure since the gown was originally sterile
• Change the gown immediately (Correct answer)

Correct answer: Change the gown immediately

A wet sterile gown is considered contaminated because moisture enables strike-through of microorganisms; the gown must be changed.

Question 133: A CST professional encounters an unfamiliar situation while performing surgical asepsis & sterilization duties. What is the most appropriate first action?

• Skip the task entirely and move to the next assignment
• Proceed based on general assumptions to avoid delays
• Consult relevant standards, guidelines, or a qualified supervisor before proceeding (Correct answer)
• Apply a solution from an unrelated field without verification

Correct answer: Consult relevant standards, guidelines, or a qualified supervisor before proceeding

When facing unfamiliar situations in surgical asepsis & sterilization, the most appropriate action is to consult relevant standards, guidelines, or a qualified supervisor. This ensures safety, accuracy, and compliance while building professional knowledge.

Question 134: When positioning a patient in the lithotomy position, what complication is the surgical technologist most vigilant about preventing?

• Pressure ulcers on the occiput
• Corneal abrasion
• Brachial plexus injury from arm abduction
• Compartment syndrome of the lower extremities (Correct answer)

Correct answer: Compartment syndrome of the lower extremities

Lithotomy position places legs in stirrups, increasing risk of compartment syndrome due to compromised perfusion and elevated limb pressure.

Question 135: The surgical technologist notices a labeled irrigation solution on the sterile field that contains epinephrine. What is the primary purpose of adding epinephrine to a local anesthetic?

• To speed healing
• To prevent infection
• To reduce bleeding by causing vasoconstriction (Correct answer)
• To increase the patient's blood pressure

Correct answer: To reduce bleeding by causing vasoconstriction

Epinephrine causes local vasoconstriction, which slows absorption of the anesthetic and reduces bleeding at the surgical site.

Question 136: How should soiled sponges be managed during a procedure to maintain count integrity?

• Counted and sealed in a watertight bag before removal
• Discarded immediately into the biohazard waste container
• Handed to the circulator who places them in a designated container within the OR (Correct answer)
• Removed from the field immediately and excluded from further counting

Correct answer: Handed to the circulator who places them in a designated container within the OR

Soiled sponges are handed to the circulator who places them in a designated kick bucket or bag that remains in the OR, keeping them counted and accounted for until the procedure ends.

Question 137: Which instrument on a laparoscopic tray is used to create the initial pneumoperitoneum before trocar insertion?

• Pnuemo sleeve
• Hasson trocar
• Laparoscopic port reducer
• Veress needle (Correct answer)

Correct answer: Veress needle

The Veress needle is a spring-loaded needle inserted through the abdominal wall to insufflate CO2 and create the working space (pneumoperitoneum) for laparoscopic surgery.

Question 138: What is the primary ethical obligation of a CST professional when a conflict of interest arises during surgical anatomy by specialty activities?

• Resolve the conflict privately without informing stakeholders
• Ignore the conflict if it does not directly affect the current task
• Disclose the conflict to all relevant parties and recuse from the decision if necessary (Correct answer)
• Proceed while favoring the outcome that benefits the professional personally

Correct answer: Disclose the conflict to all relevant parties and recuse from the decision if necessary

The primary ethical obligation when a conflict of interest arises in surgical anatomy by specialty is to disclose it to all relevant parties and, if necessary, recuse from the decision. This maintains professional integrity and stakeholder trust.

Question 139: During the instrument count, when should the first count be performed?

• Immediately before closure
• After the patient is positioned
• Before the skin incision
• Before the procedure begins and before items are added to the sterile field (Correct answer)

Correct answer: Before the procedure begins and before items are added to the sterile field

The initial count is performed before the procedure begins to establish a baseline before any instruments are introduced to the field.

Question 140: Why is it important to properly organize surgical instruments before surgery?

• It makes the procedure faster, but not necessarily safer.
• It ensures the instruments are readily available, reducing risks and delays. (Correct answer)
• It allows the surgical team to focus on the instruments rather than the patient.
• It is not necessary as long as the instruments are sterilized.

Correct answer: It ensures the instruments are readily available, reducing risks and delays.

Properly organizing surgical instruments before surgery is essential because it ensures they are readily available and easily identifiable when needed, which significantly reduces delays and potential risks during critical moments. A well-organized setup enhances efficiency, minimizes stress for the surgical team, and contributes to a safer and smoother procedure. It allows the team to focus on the patient without searching for instruments.

Question 141: During a cystoscopy with ureteral stent placement, the scrub tech should have fluoroscopy available primarily to confirm:

• Bladder capacity
• Correct stent position with proximal curl in the renal pelvis and distal curl in the bladder (Correct answer)
• Ureteral length measurement
• Absence of bladder tumors

Correct answer: Correct stent position with proximal curl in the renal pelvis and distal curl in the bladder

Fluoroscopic confirmation ensures both pigtail curls of the double-J stent are properly positioned to prevent migration or obstruction.

Question 142: What is the primary ethical obligation of a CST professional when a conflict of interest arises during instrument tray assembly activities?

• Resolve the conflict privately without informing stakeholders
• Disclose the conflict to all relevant parties and recuse from the decision if necessary (Correct answer)
• Ignore the conflict if it does not directly affect the current task
• Proceed while favoring the outcome that benefits the professional personally

Correct answer: Disclose the conflict to all relevant parties and recuse from the decision if necessary

The primary ethical obligation when a conflict of interest arises in instrument tray assembly is to disclose it to all relevant parties and, if necessary, recuse from the decision. This maintains professional integrity and stakeholder trust.

Question 143: A patient is undergoing a CABG procedure. After harvesting the saphenous vein, the scrub tech should ensure the graft is stored in which solution?

• Lactated Ringer's solution
• Sterile water
• Heparinized normal saline (Correct answer)
• 10% formalin

Correct answer: Heparinized normal saline

Heparinized normal saline prevents clotting and maintains vessel viability during the period between harvest and anastomosis.

Question 144: What is the correct order of steps for performing a surgical hand scrub using the anatomical scrub method?

• Hand, forearm, fingers, nails in any order
• Forearm, hand, fingers, nails working proximal to distal
• Nails only, then full arm rinse
• Nails, fingers, hand, forearm working distal to proximal (Correct answer)

Correct answer: Nails, fingers, hand, forearm working distal to proximal

The anatomical timed scrub proceeds distal to proximal: nails first, then each finger, hand, and forearm, to avoid recontaminating cleaner areas.

Question 145: When performing a surgical hand scrub, the scrubbing sequence should proceed:

• From elbows down to fingertips
• From fingertips to 2 inches above the elbow (Correct answer)
• In any order as long as all surfaces are scrubbed
• From wrists to fingertips only

Correct answer: From fingertips to 2 inches above the elbow

The surgical hand scrub proceeds from the most contaminated to least contaminated areas — fingertips first, then hands, then forearms up to 2 inches above the elbow.

Question 146: What is the required protocol for inspecting drapes before they are removed from the OR?

• Drapes must be carefully unfolded and inspected for concealed items before removal (Correct answer)
• Drapes are inspected by the circulator after the patient has left the room
• Drapes are excluded from count protocols and may be removed without inspection
• Drapes are inspected only if the count is incorrect and a search is initiated

Correct answer: Drapes must be carefully unfolded and inspected for concealed items before removal

All drapes, especially folded or pocketed ones, must be carefully unfolded and inspected before removal from the OR to ensure no sponges or sharps are hidden within the folds.

Question 147: Which vascular clamp is most commonly used to control the aorta during an emergency department thoracotomy?

• Satinsky partial-occlusion clamp
• DeBakey aortic clamp (Correct answer)
• Bulldog clamp
• Glover coarctation clamp

Correct answer: DeBakey aortic clamp

A DeBakey aortic cross-clamp is used to occlude the descending aorta during emergency thoracotomy, diverting blood flow to the heart and brain.

Question 148: Which electrosurgical mode cuts tissue by passing current through a small area to rapidly heat and vaporize cells?

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

Correct answer: Cut mode

The cut mode delivers a continuous current that rapidly vaporizes cells through intense localized heat.

Question 149: When opening a peel pouch onto the sterile field, the correct technique is to:

• Cut the top with scissors and place on the sterile field
• Peel the pouch back and present the contents to the scrub technologist without contaminating the inner surface (Correct answer)
• Tear the pouch quickly and drop the contents
• Hand the entire pouch to the scrub tech to open

Correct answer: Peel the pouch back and present the contents to the scrub technologist without contaminating the inner surface

The circulator peels the pouch back from both sides, keeping hands on the outside while presenting the sterile inner portion to the scrub.

Question 150: Which of the following is NOT a parameter monitored by a Bowie-Dick test?

• Air removal efficiency
• Chemical indicator color change
• Sterilant concentration in EtO cycles (Correct answer)
• Steam penetration

Correct answer: Sterilant concentration in EtO cycles

The Bowie-Dick test is specific to prevacuum steam sterilizers and evaluates air removal and steam penetration, not EtO concentration.

Question 151: Which quality assurance method is most commonly applied in trauma & emergency surgery to verify that CST professional standards are being met?

• Relying on client satisfaction surveys as the sole measure of quality
• Annual reviews conducted exclusively by non-technical management
• Structured audits, peer reviews, and performance metrics aligned with industry benchmarks (Correct answer)
• Informal self-assessment without external validation

Correct answer: Structured audits, peer reviews, and performance metrics aligned with industry benchmarks

Structured audits, peer reviews, and performance metrics aligned with industry benchmarks are the most effective quality assurance methods in trauma & emergency surgery, providing objective, measurable evidence that CST standards are consistently met.

Question 152: A post-case debrief ('hot debrief') conducted immediately after a procedure primarily serves to:

• Assign blame for any intraoperative errors
• Identify efficiency gaps and safety concerns while the case is fresh, enabling rapid process improvement (Correct answer)
• Allow the scrub tech to leave the room early
• Fulfill a billing documentation requirement

Correct answer: Identify efficiency gaps and safety concerns while the case is fresh, enabling rapid process improvement

Immediate post-case debriefs capture real-time observations about what went well and what could improve before details are forgotten, driving continuous quality improvement.

Question 153: What is the role of ethics in surgical decision-making?

• Ethical principles guide decisions that prioritize patient welfare and respect. (Correct answer)
• Ethics are not important in surgical decision-making.
• Ethics are solely determined by the surgeon.
• Ethics can be ignored to expedite the surgery.

Correct answer: Ethical principles guide decisions that prioritize patient welfare and respect.

Ethics are fundamental in surgical decision-making because they establish a moral framework for healthcare professionals. Principles like beneficence, non-maleficence, autonomy, and justice ensure that all decisions prioritize the patient's best interests, safety, and dignity. This guidance helps navigate complex situations, ensuring care is not only medically sound but also morally responsible and respectful of the individual.

Question 154: How should a surgical technician prepare a patient for surgery?

• By focusing only on the surgery and ignoring the patient’s comfort.
• By placing the patient in an uncomfortable position.
• By preparing sterile fields and ensuring proper positioning. (Correct answer)
• By leaving the patient uncovered and unmonitored.

Correct answer: By preparing sterile fields and ensuring proper positioning.

A surgical technician prepares a patient for surgery by meticulously setting up the sterile field, ensuring all necessary instruments and supplies are readily available and sterile. Additionally, they assist with proper patient positioning, which is critical for surgical access, patient comfort, and preventing nerve damage or pressure injuries during the procedure. This comprehensive preparation is vital for a safe and efficient surgery.

Question 155: Which quality assurance method is most commonly applied in surgical asepsis & sterilization to verify that CST professional standards are being met?

• Informal self-assessment without external validation
• Structured audits, peer reviews, and performance metrics aligned with industry benchmarks (Correct answer)
• Relying on client satisfaction surveys as the sole measure of quality
• Annual reviews conducted exclusively by non-technical management

Correct answer: Structured audits, peer reviews, and performance metrics aligned with industry benchmarks

Structured audits, peer reviews, and performance metrics aligned with industry benchmarks are the most effective quality assurance methods in surgical asepsis & sterilization, providing objective, measurable evidence that CST standards are consistently met.

Question 156: A keloid scar differs from a hypertrophic scar in that a keloid:

• Extends beyond the original wound borders into surrounding tissue (Correct answer)
• Occurs only in infected wounds
• Is always painful and infected
• Remains within the boundaries of the original incision

Correct answer: Extends beyond the original wound borders into surrounding tissue

Keloids are abnormal scar formations that extend beyond the original wound margins into adjacent normal tissue, unlike hypertrophic scars which stay within wound boundaries.

Question 157: Why is professionalism critical for a surgical technician?

• To contribute to the success of the surgical team and provide the best patient care. (Correct answer)
• To ensure the surgeon feels supported during the procedure.
• To prioritize the technician's personal preferences.
• To make the technician appear more experienced.

Correct answer: To contribute to the success of the surgical team and provide the best patient care.

Professionalism is crucial for a surgical technician as it directly impacts the efficiency and effectiveness of the entire surgical team. By adhering to professional standards, technicians ensure a sterile environment, accurate instrument handling, and clear communication, all of which are vital for patient safety and positive surgical outcomes. This commitment to excellence fosters trust within the team and ultimately contributes to providing the highest quality of patient care.

Question 158: Which of the following is an example of a 'miscellaneous' item that must be included in the surgical count?

• Surgical suture strands
• Vessel loops and umbilical tapes (Correct answer)
• Sterile IV tubing used on the field
• Electrosurgical pencil body

Correct answer: Vessel loops and umbilical tapes

Vessel loops and umbilical tapes are miscellaneous items used in the surgical field that must be counted because their small, flexible nature makes them prone to inadvertent retention.

Question 159: What is the importance of ethics in managing patient consent?

• To ignore patient consent if the surgery is urgent.
• To make the patient feel more comfortable.
• To ensure the patient’s consent is obtained ethically and voluntarily. (Correct answer)
• To ensure the surgeon has the final say in treatment options.

Correct answer: To ensure the patient’s consent is obtained ethically and voluntarily.

Ethics play a critical role in managing patient consent by ensuring that the patient's autonomy is respected and their decision to undergo surgery is fully informed and voluntary. This involves providing clear, comprehensive information about the procedure, risks, benefits, and alternatives, free from coercion. Ethical consent ensures that patients have the right to make decisions about their own bodies, upholding their dignity and legal rights.

Question 160: In a trauma patient requiring emergency fasciotomy for compartment syndrome of the lower leg, which compartments MUST be released?

• Anterior and deep posterior only
• Deep posterior only
• Anterior and lateral compartments only
• All four compartments: anterior, lateral, deep posterior, and superficial posterior (Correct answer)

Correct answer: All four compartments: anterior, lateral, deep posterior, and superficial posterior

A complete lower leg fasciotomy releases all four compartments (anterior, lateral, deep posterior, superficial posterior) to ensure adequate decompression and prevent muscle necrosis.

Question 161: In a trauma OR, the circulator's MOST critical responsibility during a massive hemorrhage emergency is:

• Communicating with the blood bank, documenting accurately, and anticipating needs without entering the sterile field (Correct answer)
• Scrubbing in to assist with instrument passing
• Performing the final sponge count alone
• Administering medications directly to the patient

Correct answer: Communicating with the blood bank, documenting accurately, and anticipating needs without entering the sterile field

The circulator coordinates blood product delivery, documents events in real time, and serves as the communication link between the OR team and blood bank or other departments.

Question 162: What is the primary ethical obligation of a CST professional when a conflict of interest arises during surgical asepsis & sterilization activities?

• Ignore the conflict if it does not directly affect the current task
• Disclose the conflict to all relevant parties and recuse from the decision if necessary (Correct answer)
• Proceed while favoring the outcome that benefits the professional personally
• Resolve the conflict privately without informing stakeholders

Correct answer: Disclose the conflict to all relevant parties and recuse from the decision if necessary

The primary ethical obligation when a conflict of interest arises in surgical asepsis & sterilization is to disclose it to all relevant parties and, if necessary, recuse from the decision. This maintains professional integrity and stakeholder trust.

Question 163: When setting up for a parotidectomy, which nerve monitoring system is essential to have functioning before incision?

• Vagus nerve stimulator
• Glossopharyngeal nerve monitor
• Facial nerve (CN VII) electromyographic monitor (Correct answer)
• Trigeminal nerve monitor

Correct answer: Facial nerve (CN VII) electromyographic monitor

Continuous facial nerve EMG monitoring is essential during parotidectomy because the facial nerve runs through the parotid gland and damage causes permanent paralysis.

Question 164: Which absorbable suture retains tensile strength the longest?

• Plain gut
• PDS II (polydioxanone) (Correct answer)
• Chromic gut
• Vicryl (polyglactin 910)

Correct answer: PDS II (polydioxanone)

PDS II retains approximately 70% tensile strength at 2 weeks and 50% at 4 weeks, lasting longer than gut or Vicryl.

Question 165: Which suture size is the largest in diameter?

• 2-0
• 5-0
• 2 (Correct answer)
• 0

Correct answer: 2

In the USP sizing system, larger numbers on the whole-number side (2, 3, 4) indicate larger diameter sutures.

Question 166: When should a biological indicator test be run on a steam sterilizer?

• Only when a new sterilizer is installed
• Once per year during scheduled maintenance
• After every load containing implants and at least weekly for routine loads (Correct answer)
• Monthly and after any repair

Correct answer: After every load containing implants and at least weekly for routine loads

AORN and AAMI guidelines require BI testing at least weekly and with every load containing implantable devices.

Question 167: Which document provides the surgical technologist with specific instructions about a patient's wishes regarding resuscitation during surgery?

• Advance directive or DNR order (Correct answer)
• Insurance authorization form
• Operative consent form
• Anesthesia pre-op evaluation

Correct answer: Advance directive or DNR order

An advance directive or Do-Not-Resuscitate (DNR) order legally documents the patient's resuscitation preferences and must be reviewed before surgery begins.

Question 168: In the context of or setup & room turnover, what role does continuous professional development play for CST practitioners?

• It serves primarily as a networking opportunity with no practical benefit
• It is required only during the first year of certification
• It ensures practitioners remain current with evolving standards, technologies, and best practices (Correct answer)
• It is optional and only needed for career advancement

Correct answer: It ensures practitioners remain current with evolving standards, technologies, and best practices

Continuous professional development is essential in or setup & room turnover because it ensures CST practitioners remain current with evolving standards, technologies, and best practices, maintaining competency throughout their careers.

Question 169: When must the surgeon be notified of a count discrepancy?

• Immediately upon identifying the discrepancy, before any closure proceeds (Correct answer)
• At the end of the procedure after all closure layers are complete
• After two independent re-counts confirm the discrepancy
• Only if the missing item is confirmed to be a sharp

Correct answer: Immediately upon identifying the discrepancy, before any closure proceeds

The surgeon must be notified immediately upon identifying a count discrepancy so that closure can be halted and a thorough search conducted before the wound is closed.

Question 170: Humidity in the OR should be maintained between which levels to reduce static electricity and microbial growth?

• 80–90%
• 20–60% (Correct answer)
• 65–80%
• 10–20%

Correct answer: 20–60%

ASHRAE and AORN recommend 20–60% relative humidity in the OR to reduce static electricity and limit conditions that promote microbial survival.

Question 171: What is the primary purpose of a trocar in laparoscopic surgery?

• To irrigate the surgical field
• To cut tissue
• To retract abdominal organs
• To provide port access into a body cavity (Correct answer)

Correct answer: To provide port access into a body cavity

A trocar is a pointed instrument inserted through the body wall to establish a port for laparoscopic instruments.

Question 172: A CST who works a double shift despite feeling fatigued and impaired is violating which ethical principle?

• Veracity
• Justice
• Nonmaleficence (Correct answer)
• Fidelity

Correct answer: Nonmaleficence

Working while impaired by fatigue increases the risk of harming the patient, violating the principle of nonmaleficence.

Question 173: Surgical staples used for skin closure are typically made of which material?

• Stainless steel (Correct answer)
• Absorbable polymer
• Chromic steel
• Titanium

Correct answer: Stainless steel

Skin staples are most commonly made of stainless steel, which is strong, inert, and easily removed.

Question 174: Which of the following is the MOST important reason the surgical technologist must understand the planned procedure before each case?

• To impress the surgical team with procedural knowledge
• To reduce the time needed to read the surgeon's preference card
• To anticipate patient needs, identify deviations from the plan, and advocate if the care does not match the consent (Correct answer)
• To prepare a faster instrument count at the end of the case

Correct answer: To anticipate patient needs, identify deviations from the plan, and advocate if the care does not match the consent

Understanding the planned procedure enables the scrub tech to recognize when intraoperative events deviate from what the patient consented to, which is a fundamental patient advocacy function.

Question 175: A Bookwalter retractor system is most commonly assembled for which type of procedure?

• Neurosurgical craniotomy
• Ophthalmic surgery
• Short superficial skin procedures
• Deep pelvic or abdominal procedures requiring prolonged retraction (Correct answer)

Correct answer: Deep pelvic or abdominal procedures requiring prolonged retraction

The Bookwalter is a table-mounted ring retractor system that provides stable, hands-free retraction for prolonged deep abdominal or pelvic surgery.