IAHCSMM CRCST 8TH EDITION - CRCST Exam Prep Practice Exercise 1 Questions and Answers 100% Correct

IAHCSMM CRCST 8TH EDITION -

CRCST Exam Prep Practice

Exercise 1 Questions and Answers

100% Correct


Dynamic air removal: exposure time for any wrapped item at 275 degrees. -

ANSWER-3 minutes




What is the correct percentage of relative humidity for steam sterilization? -

ANSWER-97%-100%




What are the 4 cycles of steam sterilization? - ANSWER-Conditioning,

exposure, exhaust, drying




Which low-temp sterilization method requires monitoring? - ANSWER-

Ethylene oxide

, How does ethylene oxide kill microbes? - ANSWER-By a process called

alkylation.




How do ozone and hydrogen peroxide kill microbes? - ANSWER-By a process

called oxidation.




What are the 4 cycles for vaporized hydrogen peroxide systems? - ANSWER-

Conditioning, leak test, sterilization, aeration




Discuss vaporized hydrogen peroxide sterilization parameters (temp,

concentration, time, other). - ANSWER-Temp: less than 122 degrees F

Concentration: 59%

Time: 28-55 minutes

Other: preset cycles




Discuss sterilization parameters for ethylene oxide (concentration, temp,

humidity, exposure time, aeration time) - ANSWER-Concentration: 450-1200

mg/l

Temp: 98-145 degrees F

Exposure time: 1-6 hours