CRCST ADVANCED CERTIFICATION
PRACTICE EXAM QUESTIONS AND
ANSWERS
1. Which of the following organizations is responsible for regulating the safety and efficacy of
medical devices, including sterilizers and chemical indicators?
A. FDA
B. EPA
C. OSHA
D. CDC
Answer: A
Conceptual Explanation: The Food and Drug Administration (FDA) is the regulatory
agency responsible for ensuring that medical devices, such as sterilizers and disinfectants,
are safe and effective for public use.
2. In the context of infection control, what is the ‘Spaulding Classification’ of a flexible
endoscope that enters a semi-critical area of the body?
A. Non-critical
,B. Critical
C. Ultra-critical
D. Semi-critical
Answer: D
Conceptual Explanation: According to the Spaulding Classification system, devices that
come into contact with mucous membranes or non-intact skin are considered semi-critical
and require high-level disinfection.
3. During steam sterilization, what is the primary cause of sterilization failure when air is not
completely removed from the chamber?
A. Excessive pressure
B. Superheated steam
C. Air pockets preventing steam contact
D. Low temperature at the exhaust
Answer: C
Conceptual Explanation: Air acts as an insulator. If air is trapped in the chamber or inside
a package, it prevents steam from making direct contact with all surfaces of the
instruments, leading to sterilization failure.
, 4. Which of the following process indicators is designed to react to all critical variables of a
specific sterilization process and is used to monitor the internal conditions of a pack?
A. Type 1 Process Indicator
B. Type 4 Multi-variable Indicator
C. Type 2 Bowie-Dick Test
D. Type 5 Integrating Indicator
Answer: D
Conceptual Explanation: Type 5 Integrating Indicators are designed to react to all critical
variables (time, temperature, and steam quality) and their performance is correlated to a
biological indicator.
5. What is the recommended temperature range for the sterile storage area to minimize the
risk of microbial growth and maintain package integrity?
A. 60°F to 65°F (15°C to 18°C)
B. 68°F to 75°F (20°C to 24°C)
C. 75°F to 85°F (24°C to 29°C)
D. 55°F to 60°F (13°C to 15°C)
Answer: B
PRACTICE EXAM QUESTIONS AND
ANSWERS
1. Which of the following organizations is responsible for regulating the safety and efficacy of
medical devices, including sterilizers and chemical indicators?
A. FDA
B. EPA
C. OSHA
D. CDC
Answer: A
Conceptual Explanation: The Food and Drug Administration (FDA) is the regulatory
agency responsible for ensuring that medical devices, such as sterilizers and disinfectants,
are safe and effective for public use.
2. In the context of infection control, what is the ‘Spaulding Classification’ of a flexible
endoscope that enters a semi-critical area of the body?
A. Non-critical
,B. Critical
C. Ultra-critical
D. Semi-critical
Answer: D
Conceptual Explanation: According to the Spaulding Classification system, devices that
come into contact with mucous membranes or non-intact skin are considered semi-critical
and require high-level disinfection.
3. During steam sterilization, what is the primary cause of sterilization failure when air is not
completely removed from the chamber?
A. Excessive pressure
B. Superheated steam
C. Air pockets preventing steam contact
D. Low temperature at the exhaust
Answer: C
Conceptual Explanation: Air acts as an insulator. If air is trapped in the chamber or inside
a package, it prevents steam from making direct contact with all surfaces of the
instruments, leading to sterilization failure.
, 4. Which of the following process indicators is designed to react to all critical variables of a
specific sterilization process and is used to monitor the internal conditions of a pack?
A. Type 1 Process Indicator
B. Type 4 Multi-variable Indicator
C. Type 2 Bowie-Dick Test
D. Type 5 Integrating Indicator
Answer: D
Conceptual Explanation: Type 5 Integrating Indicators are designed to react to all critical
variables (time, temperature, and steam quality) and their performance is correlated to a
biological indicator.
5. What is the recommended temperature range for the sterile storage area to minimize the
risk of microbial growth and maintain package integrity?
A. 60°F to 65°F (15°C to 18°C)
B. 68°F to 75°F (20°C to 24°C)
C. 75°F to 85°F (24°C to 29°C)
D. 55°F to 60°F (13°C to 15°C)
Answer: B
