NCCT TS-C Certification Exam | Tech in Surgery-Certified
Complete Practice Questions & Detailed Rationales 2026/2027
Question 1
Which biological indicator microorganism is specifically used to validate
and monitor the efficacy of steam sterilization (autoclave) cycles?
A. Bacillus atrophaeus
B. Geobacillus stearothermophilus
C. Staphylococcus aureus
D. Pseudomonas aeruginosa
Correct Answer: B. Geobacillus stearothermophilus
Detailed Rationale: Geobacillus stearothermophilus spores are highly
resistant to heat, making them the biological indicator of choice for
steam and hydrogen peroxide gas plasma sterilizers. Bacillus atrophaeus
is used for ethylene oxide and dry heat sterilization.
Question 2
During a surgical procedure, what is the correct chronological sequence
for performing standard intraoperative sponge, sharp, and instrument
counts?
A. First count at the end of the case, second count when closing skin.
B. Prior to incision (initial count), when closure begins for cavity/deep
layers, and when subcutaneous/skin closure begins.
C. Only when the surgeon requests a count.
,D. Midway through the procedure and immediately after the patient
leaves the OR.
Correct Answer: B. Prior to incision (initial count), when closure begins
for cavity/deep layers, and when subcutaneous/skin closure begins.
Detailed Rationale: Standard safety protocols mandate counts at three
distinct times: baseline initial count before surgery begins, a second
count when closure of a cavity or deep layer begins, and a final count
when skin closure starts to prevent retained surgical items.
Question 3
What is the primary pharmacological agent administered immediately
to treat a patient experiencing an acute intraoperative crisis of
malignant hyperthermia?
A. Epinephrine
B. Atropine
C. Dantrolene sodium
D. Lidocaine
Correct Answer: C. Dantrolene sodium
Detailed Rationale: Dantrolene is a skeletal muscle relaxant that acts as
a specific antagonist to the hypermetabolic cellular crisis of malignant
hyperthermia triggered by volatile anesthetics and succinylcholine.
Question 4
Which surgical wound classification describes a case involving acute,
non-purulent inflammation, or a minor break in sterile technique (such
as a spillage from the gastrointestinal tract)?
,A. Class I (Clean)
B. Class II (Clean-Contaminated)
C. Class III (Contaminated)
D. Class IV (Dirty / Infected)
Correct Answer: C. Class III (Contaminated)
Detailed Rationale: Class III wounds include open fresh accidental
wounds, major breaks in sterile technique, or gross spillage from the GI
tract without established infection. Class I is clean, Class II is clean-
contaminated (controlled GI/resp entry), and Class IV is infected.
Question 5
When positioning a patient in the lithotomy position, which peripheral
nerve is most at risk of injury if the legs are lowered too quickly or
improperly supported?
A. Sciatic nerve
B. Common peroneal nerve
C. Radial nerve
D. Femoral nerve
Correct Answer: B. Common peroneal nerve
Detailed Rationale: Improper positioning or padding in the lithotomy
position can place excessive pressure on the fibular head, compressing
the common peroneal nerve and potentially causing foot drop.
Question 6
, What type of suture needle point is specifically designed forfriable or
delicate tissue such as the liver, spleen, kidney, or intestine, as it pushes
tissue aside without cutting?
A. Reverse cutting point
B. Taper point
C. Conventional cutting point
D. Spatula point
Correct Answer: B. Taper point
Detailed Rationale: Taper needles have a round shaft that tapers to a
sharp point, separating tissue fibers rather than cutting them, making
them ideal for soft internal organs and vessels. Cutting needles are used
for tough tissues like skin.
Question 7
What are the anatomical borders of Hesselbach's triangle, the area
where direct inguinal hernias commonly occur?
A. Inguinal ligament, rectus abdominis muscle, and inferior epigastric
vessels.
B. Costal margin, iliac crest, and linea alba.
C. Femoral artery, vein, and nerve.
D. Pubic symphysis, ischial tuberosity, and greater trochanter.
Correct Answer: A. Inguinal ligament, rectus abdominis muscle, and
inferior epigastric vessels.
Complete Practice Questions & Detailed Rationales 2026/2027
Question 1
Which biological indicator microorganism is specifically used to validate
and monitor the efficacy of steam sterilization (autoclave) cycles?
A. Bacillus atrophaeus
B. Geobacillus stearothermophilus
C. Staphylococcus aureus
D. Pseudomonas aeruginosa
Correct Answer: B. Geobacillus stearothermophilus
Detailed Rationale: Geobacillus stearothermophilus spores are highly
resistant to heat, making them the biological indicator of choice for
steam and hydrogen peroxide gas plasma sterilizers. Bacillus atrophaeus
is used for ethylene oxide and dry heat sterilization.
Question 2
During a surgical procedure, what is the correct chronological sequence
for performing standard intraoperative sponge, sharp, and instrument
counts?
A. First count at the end of the case, second count when closing skin.
B. Prior to incision (initial count), when closure begins for cavity/deep
layers, and when subcutaneous/skin closure begins.
C. Only when the surgeon requests a count.
,D. Midway through the procedure and immediately after the patient
leaves the OR.
Correct Answer: B. Prior to incision (initial count), when closure begins
for cavity/deep layers, and when subcutaneous/skin closure begins.
Detailed Rationale: Standard safety protocols mandate counts at three
distinct times: baseline initial count before surgery begins, a second
count when closure of a cavity or deep layer begins, and a final count
when skin closure starts to prevent retained surgical items.
Question 3
What is the primary pharmacological agent administered immediately
to treat a patient experiencing an acute intraoperative crisis of
malignant hyperthermia?
A. Epinephrine
B. Atropine
C. Dantrolene sodium
D. Lidocaine
Correct Answer: C. Dantrolene sodium
Detailed Rationale: Dantrolene is a skeletal muscle relaxant that acts as
a specific antagonist to the hypermetabolic cellular crisis of malignant
hyperthermia triggered by volatile anesthetics and succinylcholine.
Question 4
Which surgical wound classification describes a case involving acute,
non-purulent inflammation, or a minor break in sterile technique (such
as a spillage from the gastrointestinal tract)?
,A. Class I (Clean)
B. Class II (Clean-Contaminated)
C. Class III (Contaminated)
D. Class IV (Dirty / Infected)
Correct Answer: C. Class III (Contaminated)
Detailed Rationale: Class III wounds include open fresh accidental
wounds, major breaks in sterile technique, or gross spillage from the GI
tract without established infection. Class I is clean, Class II is clean-
contaminated (controlled GI/resp entry), and Class IV is infected.
Question 5
When positioning a patient in the lithotomy position, which peripheral
nerve is most at risk of injury if the legs are lowered too quickly or
improperly supported?
A. Sciatic nerve
B. Common peroneal nerve
C. Radial nerve
D. Femoral nerve
Correct Answer: B. Common peroneal nerve
Detailed Rationale: Improper positioning or padding in the lithotomy
position can place excessive pressure on the fibular head, compressing
the common peroneal nerve and potentially causing foot drop.
Question 6
, What type of suture needle point is specifically designed forfriable or
delicate tissue such as the liver, spleen, kidney, or intestine, as it pushes
tissue aside without cutting?
A. Reverse cutting point
B. Taper point
C. Conventional cutting point
D. Spatula point
Correct Answer: B. Taper point
Detailed Rationale: Taper needles have a round shaft that tapers to a
sharp point, separating tissue fibers rather than cutting them, making
them ideal for soft internal organs and vessels. Cutting needles are used
for tough tissues like skin.
Question 7
What are the anatomical borders of Hesselbach's triangle, the area
where direct inguinal hernias commonly occur?
A. Inguinal ligament, rectus abdominis muscle, and inferior epigastric
vessels.
B. Costal margin, iliac crest, and linea alba.
C. Femoral artery, vein, and nerve.
D. Pubic symphysis, ischial tuberosity, and greater trochanter.
Correct Answer: A. Inguinal ligament, rectus abdominis muscle, and
inferior epigastric vessels.
