CST CERTIFIED SURGICAL TECHNOLOGIST
EXAM 2026/2027 | TEST BANK 3 | PRACTICE
QUESTIONS & VERIFIED ANSWERS | NBSTSA
PREP
CST CERTIFIED SURGICAL TECHNOLOGIST EXAM 2026/2027 | TEST BANK 3
PRACTICE QUESTIONS & VERIFIED ANSWERS | NBSTSA PREP
DOCUMENT OVERVIEW
• Comprehensive 200-question practice test bank designed to mirror the actual
NBSTSA CST certification exam format with detailed rationales for each answer
• Study this material by reviewing questions across all core competency areas,
mastering anatomy, instrumentation, sterile technique, and safety protocols
essential for surgical technologist certification
QUESTION 1
What is the primary function of the surgical technologist in the operating
room?
A) To administer anesthesia to the patient
B) To provide direct patient care and emotional support
C) To maintain sterile technique and manage instruments and supplies during
surgical procedures
D) To perform the surgical procedure independently
E) To write operative reports and maintain medical records
✓ CORRECT ANSWER: C) To maintain sterile technique and manage
instruments and supplies during surgical procedures
RATIONALE: The primary responsibility of a surgical technologist is to maintain
asepsis and manage the surgical field, instruments, and supplies. While surgical
,technologists may assist with patient care and documentation, their main function
is ensuring a sterile environment and providing the surgical team with necessary
instruments and materials during the procedure. Anesthesia is administered by
anesthesiologists or nurse anesthetists, and surgical procedures are performed by
surgeons.
QUESTION 2
Which layer of the epidermis is responsible for continuous cell reproduction?
A) Stratum corneum
B) Stratum lucidum
C) Stratum granulosum
D) Stratum germinativum
E) Stratum spinosum
✓ CORRECT ANSWER: D) Stratum germinativum
RATIONALE: The stratum germinativum (basal layer) is the deepest layer of the
epidermis and contains cells that continuously divide through mitosis to produce
new epithelial cells. These cells gradually move upward through the other layers,
flattening and dying as they reach the surface. The other layers are composed of
progressively more keratinized cells that eventually desquamate from the skin
surface.
QUESTION 3
What is the correct order of the spinal cord nerve roots from superior to
inferior?
A) Cervical, Thoracic, Lumbar, Sacral, Coccygeal
B) Thoracic, Cervical, Lumbar, Sacral, Coccygeal
C) Lumbar, Cervical, Thoracic, Sacral, Coccygeal
,D) Sacral, Lumbar, Thoracic, Cervical, Coccygeal
E) Cervical, Lumbar, Thoracic, Sacral, Coccygeal
✓ CORRECT ANSWER: A) Cervical, Thoracic, Lumbar, Sacral, Coccygeal
RATIONALE: The spinal cord is divided into five regions from superior to inferior:
cervical (8 pairs), thoracic (12 pairs), lumbar (5 pairs), sacral (5 pairs), and coccygeal
(1 pair). Understanding this anatomical sequence is critical for surgical
technologists working with procedures involving the spine or nervous system, as it
helps with proper patient positioning and identification of surgical landmarks.
QUESTION 4
Which of the following is NOT a function of the liver?
A) Synthesis of clotting factors
B) Production of bile
C) Regulation of blood glucose levels
D) Synthesis of hemoglobin
E) Metabolism of drugs
✓ CORRECT ANSWER: D) Synthesis of hemoglobin
RATIONALE: Hemoglobin is synthesized in the bone marrow, not the liver. The liver
is responsible for synthesizing clotting factors (prothrombin, fibrinogen), producing
bile for fat digestion, regulating glucose levels through glycogenesis and
gluconeogenesis, and metabolizing drugs and toxins. Knowledge of hepatic
functions is important for surgical technologists assisting with hepatic procedures
or managing patients with liver disease.
QUESTION 5
What is the primary role of the pancreas in the endocrine system?
A) Production of thyroid hormones
, B) Production of insulin and glucagon for glucose regulation
C) Production of parathyroid hormone
D) Production of cortisol and adrenaline
E) Production of growth hormone
✓ CORRECT ANSWER: B) Production of insulin and glucagon for glucose
regulation
RATIONALE: The pancreas functions as both an endocrine and exocrine gland. As
an endocrine gland, it produces insulin (lowers blood glucose) and glucagon (raises
blood glucose) through its islet cells. These hormones are essential for maintaining
blood glucose homeostasis. Understanding pancreatic function is important for
surgical technologists assisting with pancreatic procedures or managing diabetic
patients perioperatively.
QUESTION 6
Which chamber of the heart receives deoxygenated blood from the body?
A) Left atrium
B) Right atrium
C) Left ventricle
D) Right ventricle
E) Coronary sinus
✓ CORRECT ANSWER: B) Right atrium
RATIONALE: The right atrium receives deoxygenated blood from the body through
the superior and inferior vena cava. This blood then flows into the right ventricle,
which pumps it to the lungs through the pulmonary artery for oxygenation. The left
atrium receives oxygenated blood from the lungs, and the left ventricle pumps this
blood to the systemic circulation. Cardiac anatomy is fundamental for surgical
technologists assisting with cardiac procedures.
EXAM 2026/2027 | TEST BANK 3 | PRACTICE
QUESTIONS & VERIFIED ANSWERS | NBSTSA
PREP
CST CERTIFIED SURGICAL TECHNOLOGIST EXAM 2026/2027 | TEST BANK 3
PRACTICE QUESTIONS & VERIFIED ANSWERS | NBSTSA PREP
DOCUMENT OVERVIEW
• Comprehensive 200-question practice test bank designed to mirror the actual
NBSTSA CST certification exam format with detailed rationales for each answer
• Study this material by reviewing questions across all core competency areas,
mastering anatomy, instrumentation, sterile technique, and safety protocols
essential for surgical technologist certification
QUESTION 1
What is the primary function of the surgical technologist in the operating
room?
A) To administer anesthesia to the patient
B) To provide direct patient care and emotional support
C) To maintain sterile technique and manage instruments and supplies during
surgical procedures
D) To perform the surgical procedure independently
E) To write operative reports and maintain medical records
✓ CORRECT ANSWER: C) To maintain sterile technique and manage
instruments and supplies during surgical procedures
RATIONALE: The primary responsibility of a surgical technologist is to maintain
asepsis and manage the surgical field, instruments, and supplies. While surgical
,technologists may assist with patient care and documentation, their main function
is ensuring a sterile environment and providing the surgical team with necessary
instruments and materials during the procedure. Anesthesia is administered by
anesthesiologists or nurse anesthetists, and surgical procedures are performed by
surgeons.
QUESTION 2
Which layer of the epidermis is responsible for continuous cell reproduction?
A) Stratum corneum
B) Stratum lucidum
C) Stratum granulosum
D) Stratum germinativum
E) Stratum spinosum
✓ CORRECT ANSWER: D) Stratum germinativum
RATIONALE: The stratum germinativum (basal layer) is the deepest layer of the
epidermis and contains cells that continuously divide through mitosis to produce
new epithelial cells. These cells gradually move upward through the other layers,
flattening and dying as they reach the surface. The other layers are composed of
progressively more keratinized cells that eventually desquamate from the skin
surface.
QUESTION 3
What is the correct order of the spinal cord nerve roots from superior to
inferior?
A) Cervical, Thoracic, Lumbar, Sacral, Coccygeal
B) Thoracic, Cervical, Lumbar, Sacral, Coccygeal
C) Lumbar, Cervical, Thoracic, Sacral, Coccygeal
,D) Sacral, Lumbar, Thoracic, Cervical, Coccygeal
E) Cervical, Lumbar, Thoracic, Sacral, Coccygeal
✓ CORRECT ANSWER: A) Cervical, Thoracic, Lumbar, Sacral, Coccygeal
RATIONALE: The spinal cord is divided into five regions from superior to inferior:
cervical (8 pairs), thoracic (12 pairs), lumbar (5 pairs), sacral (5 pairs), and coccygeal
(1 pair). Understanding this anatomical sequence is critical for surgical
technologists working with procedures involving the spine or nervous system, as it
helps with proper patient positioning and identification of surgical landmarks.
QUESTION 4
Which of the following is NOT a function of the liver?
A) Synthesis of clotting factors
B) Production of bile
C) Regulation of blood glucose levels
D) Synthesis of hemoglobin
E) Metabolism of drugs
✓ CORRECT ANSWER: D) Synthesis of hemoglobin
RATIONALE: Hemoglobin is synthesized in the bone marrow, not the liver. The liver
is responsible for synthesizing clotting factors (prothrombin, fibrinogen), producing
bile for fat digestion, regulating glucose levels through glycogenesis and
gluconeogenesis, and metabolizing drugs and toxins. Knowledge of hepatic
functions is important for surgical technologists assisting with hepatic procedures
or managing patients with liver disease.
QUESTION 5
What is the primary role of the pancreas in the endocrine system?
A) Production of thyroid hormones
, B) Production of insulin and glucagon for glucose regulation
C) Production of parathyroid hormone
D) Production of cortisol and adrenaline
E) Production of growth hormone
✓ CORRECT ANSWER: B) Production of insulin and glucagon for glucose
regulation
RATIONALE: The pancreas functions as both an endocrine and exocrine gland. As
an endocrine gland, it produces insulin (lowers blood glucose) and glucagon (raises
blood glucose) through its islet cells. These hormones are essential for maintaining
blood glucose homeostasis. Understanding pancreatic function is important for
surgical technologists assisting with pancreatic procedures or managing diabetic
patients perioperatively.
QUESTION 6
Which chamber of the heart receives deoxygenated blood from the body?
A) Left atrium
B) Right atrium
C) Left ventricle
D) Right ventricle
E) Coronary sinus
✓ CORRECT ANSWER: B) Right atrium
RATIONALE: The right atrium receives deoxygenated blood from the body through
the superior and inferior vena cava. This blood then flows into the right ventricle,
which pumps it to the lungs through the pulmonary artery for oxygenation. The left
atrium receives oxygenated blood from the lungs, and the left ventricle pumps this
blood to the systemic circulation. Cardiac anatomy is fundamental for surgical
technologists assisting with cardiac procedures.
