Surgical Technology Week 1 Exam Version A- Answer Key 2025 (latest)
1. A laminar airflow (LAF) system moves a contained volume of air in layers at a continuous
a. current
b. energy
c. circuit
d. velocity Correct
2. All of the following are compressed gases EXCEPT .
a. oxygen
b. suction Correct
c. nitrous oxide
d. nitrogen
3. All of the following are core principles of operating room design EXCEPT
a. personnel policies Correct
b. infection control
c. environmental safety
d. efficiency
4. High may increase the risk of mold and bacterial growth on surfaces.
a. LED
b. humidity Correct
c. HEPA
d. air pressure
5. __________ filters are installed in the operating room ventilation system and remove particles equal to or larger
than 0.3 um.
a. FEMA
b. OSHA
c. HEPA Correct
d. PACA
6. Modern surgical lighting is usually derived from
a. LED sources and halogen Correct
b. energy saving sources and high-definition screens
c. compressed air and gas
d. LED sources and light-emitting diodes
7. The air pressure in the surgical suite is maintained at a level of higher than the air pressure in
adjacent semi-restricted areas.
a. 20%
b. 30%
c. I 0% Correct
d. 50%
8. The clean utility room within the surgical department is a(n) area.
a. restricted
b. unrestricted
c. semi-restricted Correct
d. none of the above
, 9. The current standard for humidity in the operating room is
a. 10% to 20%
b. 30%to6 0 %
c. 20% to 60% Correct
d. 40% to 70%
I 0. The purpose of floor plans is to provide efficiency, environmental safety, and in the surgical
department.
a. work flow
b. infection control Correct
c. design
d. corridor
11. The standard for air exchange in the operating room is a minimum of and a maximum of
filtered air exchanges per hour.
a. 15; 20 Correct
b. 25; 30
C. 40; 50
d. 5; 10
12. The strength of vacuum of the suction is measured in
a. pounds per square inch (psi) Correct
b. laminar airflow (LAF)
c. light-emitting diode (LED)
d. high-efficiency particulate air (HEPA)
13. The surgical department is structured and engineered to provide a safe and efficient environment for patients
and staff members. Many different designs can be used, but all must achieve the following objective(s):
a. infection control.
b. environmental safety.
c. efficient use of personnel, time, space, and resources.
d. all of the above. Correct
14. The temperature in the operating room is maintained at
a. 64° to 68° F
b. 68° to 73° F Correct
c. 72° to 79° F
d. 78° to 83° F
15. What attire is required to enter the restricted area?
a. Hair cap, mask, shoe covers, complete scrub suit Correct
b. Scrub suit and hair cap
c. Hair cap, facial hair covering, complete scrub attire
d. None of the above
16. When the operating room door is opened, the pressure from within the room pushes air _____.
a. negative; in
b. exchange; in
c. positive; out Correct
d. none of the above
1. A laminar airflow (LAF) system moves a contained volume of air in layers at a continuous
a. current
b. energy
c. circuit
d. velocity Correct
2. All of the following are compressed gases EXCEPT .
a. oxygen
b. suction Correct
c. nitrous oxide
d. nitrogen
3. All of the following are core principles of operating room design EXCEPT
a. personnel policies Correct
b. infection control
c. environmental safety
d. efficiency
4. High may increase the risk of mold and bacterial growth on surfaces.
a. LED
b. humidity Correct
c. HEPA
d. air pressure
5. __________ filters are installed in the operating room ventilation system and remove particles equal to or larger
than 0.3 um.
a. FEMA
b. OSHA
c. HEPA Correct
d. PACA
6. Modern surgical lighting is usually derived from
a. LED sources and halogen Correct
b. energy saving sources and high-definition screens
c. compressed air and gas
d. LED sources and light-emitting diodes
7. The air pressure in the surgical suite is maintained at a level of higher than the air pressure in
adjacent semi-restricted areas.
a. 20%
b. 30%
c. I 0% Correct
d. 50%
8. The clean utility room within the surgical department is a(n) area.
a. restricted
b. unrestricted
c. semi-restricted Correct
d. none of the above
, 9. The current standard for humidity in the operating room is
a. 10% to 20%
b. 30%to6 0 %
c. 20% to 60% Correct
d. 40% to 70%
I 0. The purpose of floor plans is to provide efficiency, environmental safety, and in the surgical
department.
a. work flow
b. infection control Correct
c. design
d. corridor
11. The standard for air exchange in the operating room is a minimum of and a maximum of
filtered air exchanges per hour.
a. 15; 20 Correct
b. 25; 30
C. 40; 50
d. 5; 10
12. The strength of vacuum of the suction is measured in
a. pounds per square inch (psi) Correct
b. laminar airflow (LAF)
c. light-emitting diode (LED)
d. high-efficiency particulate air (HEPA)
13. The surgical department is structured and engineered to provide a safe and efficient environment for patients
and staff members. Many different designs can be used, but all must achieve the following objective(s):
a. infection control.
b. environmental safety.
c. efficient use of personnel, time, space, and resources.
d. all of the above. Correct
14. The temperature in the operating room is maintained at
a. 64° to 68° F
b. 68° to 73° F Correct
c. 72° to 79° F
d. 78° to 83° F
15. What attire is required to enter the restricted area?
a. Hair cap, mask, shoe covers, complete scrub suit Correct
b. Scrub suit and hair cap
c. Hair cap, facial hair covering, complete scrub attire
d. None of the above
16. When the operating room door is opened, the pressure from within the room pushes air _____.
a. negative; in
b. exchange; in
c. positive; out Correct
d. none of the above
