Page 1 of 72
The Ultimate IAHCSMM CRCST Exam COMPLETE
QUESTIONS AND VERIFIED SOLUTIONS 2026-2027
LATEST UPDATE THIS YEAR
The Ultimate IAHCSMM CRCST
QUESTION: Which type of fire extinguisher should be used on flammable liquids?
- Type A
- Type B
- Type C
- Type D - ANSWER-Type B
QUESTION: Deionized water is used for:
-Sterile irrigation
- Heating/cooling therapy units
- Injection
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- Steam sterilizers - ANSWER-Sterile Irrigation
QUESTION: Minimum Recommendations for EtO Aeration
- 8 hours at 140 F or 12 hours at 122 F
- 8 hours at 140 F or 10 hours at 122 F
- 6 hours at 140 F or 8 hours at 122 F - ANSWER-8 hours at 140 F or 12 Hours at 122F
QUESTION: Which of the following sterilization quality assurance measurements is designed to
provide a written record of sterilizer cycle activity:
- Biological tests
- Bowie dick tests
- Mechanical recording charts/printouts
- Chemical integrators - ANSWER-Mechanical recording charts/printouts
QUESTION: Thread-like "tails" that help bacteria move through liquids are called:
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- Nucleus
- Causative agent
- Flagella
- Spores - ANSWER-Flagella
Q; True or False:
Sometimes State or local regulations differ from Federal regulations and when that happens,
the most stringent regulations apply. - ANSWER-True
QUESTION: True or False:
Anaerobic bacteria require free oxygen to live. - ANSWER-False
QUESTION: True or False:
Instruments are heat treated to give their surface a mirror (shiny) finish. - ANSWER-False
QUESTION: Water that is turbid is:
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- Hot
- Tepid
- Clear
- Cloudy - ANSWER-Cloudy
QUESTION: This unit pumps heated or cooled water through a coiled pad to therapeutically
raise or lower the body temperature
- PCA pump
- Hypothermia unit
- Feeding pump
- Pump - ANSWER-Hypothermia unit
QUESTION: For safety purposes, Central Service Technicians should consider all microorganisms
in the decontamination area:
- Gram-Positive
- Gram-Negative
The Ultimate IAHCSMM CRCST Exam COMPLETE
QUESTIONS AND VERIFIED SOLUTIONS 2026-2027
LATEST UPDATE THIS YEAR
The Ultimate IAHCSMM CRCST
QUESTION: Which type of fire extinguisher should be used on flammable liquids?
- Type A
- Type B
- Type C
- Type D - ANSWER-Type B
QUESTION: Deionized water is used for:
-Sterile irrigation
- Heating/cooling therapy units
- Injection
,Page 2 of 72
- Steam sterilizers - ANSWER-Sterile Irrigation
QUESTION: Minimum Recommendations for EtO Aeration
- 8 hours at 140 F or 12 hours at 122 F
- 8 hours at 140 F or 10 hours at 122 F
- 6 hours at 140 F or 8 hours at 122 F - ANSWER-8 hours at 140 F or 12 Hours at 122F
QUESTION: Which of the following sterilization quality assurance measurements is designed to
provide a written record of sterilizer cycle activity:
- Biological tests
- Bowie dick tests
- Mechanical recording charts/printouts
- Chemical integrators - ANSWER-Mechanical recording charts/printouts
QUESTION: Thread-like "tails" that help bacteria move through liquids are called:
,Page 3 of 72
- Nucleus
- Causative agent
- Flagella
- Spores - ANSWER-Flagella
Q; True or False:
Sometimes State or local regulations differ from Federal regulations and when that happens,
the most stringent regulations apply. - ANSWER-True
QUESTION: True or False:
Anaerobic bacteria require free oxygen to live. - ANSWER-False
QUESTION: True or False:
Instruments are heat treated to give their surface a mirror (shiny) finish. - ANSWER-False
QUESTION: Water that is turbid is:
, Page 4 of 72
- Hot
- Tepid
- Clear
- Cloudy - ANSWER-Cloudy
QUESTION: This unit pumps heated or cooled water through a coiled pad to therapeutically
raise or lower the body temperature
- PCA pump
- Hypothermia unit
- Feeding pump
- Pump - ANSWER-Hypothermia unit
QUESTION: For safety purposes, Central Service Technicians should consider all microorganisms
in the decontamination area:
- Gram-Positive
- Gram-Negative
