CRCST CERTIFICATION FINAL PAPER 2026
SOLVED QUESTIONS AND ACCURATE
ANSWERS GRADED A+
● Which type of fire extinguisher should be used on flammable liquids?
- Type A
- Type B
- Type C
- Type D Answer: Type B
● Deionized water is used for:
-Sterile irrigation
- Heating/cooling therapy units
- Injection
- Steam sterilizers Answer: Sterile Irrigation
● 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
● 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
● Thread-like "tails" that help bacteria move through liquids are called:
- Nucleus
- Causative agent
- Flagella
- Spores Answer: Flagella
● True or False:
Anaerobic bacteria require free oxygen to live. Answer: False
● True or False:
Instruments are heat treated to give their surface a mirror (shiny) finish.
Answer: False
, ● Water that is turbid is:
- Hot
- Tepid
- Clear
- Cloudy Answer: Cloudy
● 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
● For safety purposes, Central Service Technicians should consider all
microorganisms in the decontamination area:
- Gram-Positive
- Gram-Negative
- Manageable
- Potentially Infectious Answer: Potentially infectious
● True or False:
To prevent aerosols, items should be brushed below the surface of the
water. Answer: True
SOLVED QUESTIONS AND ACCURATE
ANSWERS GRADED A+
● Which type of fire extinguisher should be used on flammable liquids?
- Type A
- Type B
- Type C
- Type D Answer: Type B
● Deionized water is used for:
-Sterile irrigation
- Heating/cooling therapy units
- Injection
- Steam sterilizers Answer: Sterile Irrigation
● 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
● 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
● Thread-like "tails" that help bacteria move through liquids are called:
- Nucleus
- Causative agent
- Flagella
- Spores Answer: Flagella
● True or False:
Anaerobic bacteria require free oxygen to live. Answer: False
● True or False:
Instruments are heat treated to give their surface a mirror (shiny) finish.
Answer: False
, ● Water that is turbid is:
- Hot
- Tepid
- Clear
- Cloudy Answer: Cloudy
● 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
● For safety purposes, Central Service Technicians should consider all
microorganisms in the decontamination area:
- Gram-Positive
- Gram-Negative
- Manageable
- Potentially Infectious Answer: Potentially infectious
● True or False:
To prevent aerosols, items should be brushed below the surface of the
water. Answer: True
