Surgical Technologist Certification Exam
Study Guide 2026: Comprehensive
Preparation with Practice Questions, Verified
Answers, Detailed Rationales, and In-Depth
Review for Certification Success
1. Which of the following is the MOST important principle
when preparing a sterile field?
A. Keep sterile items below waist level
B. Turn your back to the sterile field to avoid contamination
C. Sterile objects must remain above waist level and in
constant view
D. Reach over the sterile field quickly to minimize exposure
Rationale: Maintaining a sterile field requires constant
visualization and keeping items above waist level to prevent
accidental contamination from unseen contact or
gravitational contamination from non-sterile surfaces.
2. During surgical hand scrubbing, which action is most
appropriate?
A. Scrub hands for 1 minute using circular motion
B. Keep hands above elbows at all times after rinsing
C. Lower hands below waist to allow water to drip off
D. Touch faucet handles with bare hands after scrubbing
,Rationale: Hands must remain above elbows so water flows
from clean to less clean areas, preventing contamination from
the forearm to the hands.
3. Which suture type is best for prolonged wound support in
fascia closure?
A. Plain gut
B. Chromic gut
C. Polypropylene (non-absorbable synthetic monofilament)
D. Polyglycolic acid
Rationale: Fascia requires long-term strength, and non-
absorbable monofilament sutures like polypropylene provide
durable tensile strength and minimal tissue reaction.
4. What is the primary purpose of a Mayo stand cover
during surgery?
A. Increase visibility of instruments
B. Provide cushioning for instruments
C. Maintain sterility of frequently used instruments on the
sterile field
D. Organize instruments by weight
Rationale: The Mayo stand cover maintains sterility for
instruments that will be used frequently and need to remain
within the sterile field.
,5. What is the correct response if a sterile glove becomes
punctured during surgery?
A. Continue surgery and change gloves later
B. Apply antiseptic over glove and continue
C. Remove gloves immediately and reglove using sterile
technique
D. Cover hole with sterile tape and continue
Rationale: A perforated glove breaks sterility, requiring
immediate replacement to prevent contamination of the
sterile field.
6. Which antiseptic is most commonly used for preoperative
skin preparation?
A. Hydrogen peroxide
B. Alcohol alone
C. Chlorhexidine gluconate with alcohol base
D. Saline solution
Rationale: Chlorhexidine with alcohol provides broad-
spectrum antimicrobial action and persistent activity on the
skin.
7. The FIRST step when receiving a surgical specimen is to:
A. Place it in formalin immediately
B. Label it after the procedure
C. Verify patient identity and specimen source with surgeon
D. Store it in sterile saline
, Rationale: Correct identification is critical to prevent medical
errors and ensure accurate pathology results.
8. Which instrument is commonly used for grasping delicate
tissue without crushing it?
A. Allis clamp
B. Kocher forceps
C. Babcock forceps
D. Kelly clamp
Rationale: Babcock forceps are atraumatic and designed for
delicate tissue handling such as bowel or fallopian tubes.
9. What is the primary hazard of electrosurgery in the OR?
A. Excessive bleeding
B. Air embolism
C. Thermal injury to surrounding tissues
D. Hypothermia
Rationale: Electrosurgery generates heat that can
unintentionally damage nearby tissues if not properly
controlled.
10. Which position is MOST appropriate for a patient
undergoing rectal surgery?
A. Supine
B. Trendelenburg
Study Guide 2026: Comprehensive
Preparation with Practice Questions, Verified
Answers, Detailed Rationales, and In-Depth
Review for Certification Success
1. Which of the following is the MOST important principle
when preparing a sterile field?
A. Keep sterile items below waist level
B. Turn your back to the sterile field to avoid contamination
C. Sterile objects must remain above waist level and in
constant view
D. Reach over the sterile field quickly to minimize exposure
Rationale: Maintaining a sterile field requires constant
visualization and keeping items above waist level to prevent
accidental contamination from unseen contact or
gravitational contamination from non-sterile surfaces.
2. During surgical hand scrubbing, which action is most
appropriate?
A. Scrub hands for 1 minute using circular motion
B. Keep hands above elbows at all times after rinsing
C. Lower hands below waist to allow water to drip off
D. Touch faucet handles with bare hands after scrubbing
,Rationale: Hands must remain above elbows so water flows
from clean to less clean areas, preventing contamination from
the forearm to the hands.
3. Which suture type is best for prolonged wound support in
fascia closure?
A. Plain gut
B. Chromic gut
C. Polypropylene (non-absorbable synthetic monofilament)
D. Polyglycolic acid
Rationale: Fascia requires long-term strength, and non-
absorbable monofilament sutures like polypropylene provide
durable tensile strength and minimal tissue reaction.
4. What is the primary purpose of a Mayo stand cover
during surgery?
A. Increase visibility of instruments
B. Provide cushioning for instruments
C. Maintain sterility of frequently used instruments on the
sterile field
D. Organize instruments by weight
Rationale: The Mayo stand cover maintains sterility for
instruments that will be used frequently and need to remain
within the sterile field.
,5. What is the correct response if a sterile glove becomes
punctured during surgery?
A. Continue surgery and change gloves later
B. Apply antiseptic over glove and continue
C. Remove gloves immediately and reglove using sterile
technique
D. Cover hole with sterile tape and continue
Rationale: A perforated glove breaks sterility, requiring
immediate replacement to prevent contamination of the
sterile field.
6. Which antiseptic is most commonly used for preoperative
skin preparation?
A. Hydrogen peroxide
B. Alcohol alone
C. Chlorhexidine gluconate with alcohol base
D. Saline solution
Rationale: Chlorhexidine with alcohol provides broad-
spectrum antimicrobial action and persistent activity on the
skin.
7. The FIRST step when receiving a surgical specimen is to:
A. Place it in formalin immediately
B. Label it after the procedure
C. Verify patient identity and specimen source with surgeon
D. Store it in sterile saline
, Rationale: Correct identification is critical to prevent medical
errors and ensure accurate pathology results.
8. Which instrument is commonly used for grasping delicate
tissue without crushing it?
A. Allis clamp
B. Kocher forceps
C. Babcock forceps
D. Kelly clamp
Rationale: Babcock forceps are atraumatic and designed for
delicate tissue handling such as bowel or fallopian tubes.
9. What is the primary hazard of electrosurgery in the OR?
A. Excessive bleeding
B. Air embolism
C. Thermal injury to surrounding tissues
D. Hypothermia
Rationale: Electrosurgery generates heat that can
unintentionally damage nearby tissues if not properly
controlled.
10. Which position is MOST appropriate for a patient
undergoing rectal surgery?
A. Supine
B. Trendelenburg
