IAHCSMM CRCST Exam 500 Questions & Answers
2026–2027 | Comprehensive Review
is the first step in the sterilization process. - correct answers -Cleaning
2. Central Service Technicians must wear special attire referred to as to minimize their exposure to
blood- borne pathogens and other contaminants. - correct answers -PPE
What type of a pressure is required for decontamination areas? - correct answers -Negative
The use of analytical skills to solve problems and make decisions is a component of which of the
following knowledge and skills dimensions? - correct answers -Employability skills
5. Nosocomial infections are: - correct answers -Those which occur in the course of being treated in the
hospital
6. The human resources tool that identifies major tasks performed by persons in specific positions is
called a: - correct answers -Job description
7. Which of the following is the most popular title for the central service department head? - correct
answers -Director
What is the coolest part of the sterilizer? - correct answers -Drain line of the sterilizer
9. Autoclave sterilizer is a class of device. - correct answers -Class II
1
,10. In a sterilization load containing 2 small basins, the chemicals indicators will be positioned. - correct
answers -On the top of the basins
Package condensation will occur when: - correct answers -Placing hot or warm packages in cold surfaces
What is the preferred pH of detergents used for most cleaning processes? - correct answers -Neutral pH
13. System that includes inflatable compression sleeves and a characteristic pressure modulation in
order to reduce risk of deep vein thrombosis (DVT) - correct answers -Sequential compression device
14. The moisture content of saturated steam should posses a relative humidity of: - correct answers -
97% to 100%
Which the following steps happens first when proceeding flexible endoscopies? - correct answers -Leak
testing
Information regarding cleaning processes for endoscopes should be provided by: - correct answers -The
instrument manufacturer
Which of the following statements about endoscopes is true? - correct answers -Not all endoscopes can
be processed in the AER
the FDA classifies sterilization packaging as a: - correct answers -Class Il medical device
Which of the following is NOT an acceptable sterilization packaging material? - correct answers -Canvas
2
, Wicking materials are used to: - correct answers -Allow air removal, steam penetration and facilitate
drying
When arranging plastic-paper pouches in the sterilizer, the pouches should be arranged: - correct
answers -Paper to plastic
The relative humidity of the central service department should be: - correct answers -Less than 75%
When placing ring handled instruments in an instrument tray, you should: - correct answers -Unlock the
handles and open the instruments
A material that removes electrons from another substance is called: - correct answers -An oxidizing
agent
Before an item can be placed in a liquid chemical sterile processing system they must be: - correct
answers -Cleaned
Both AORN and the joint commission recommend that: - correct answers -The use of flash sterilization
be minimized or decreased
Implantable devices: - correct answers -Should not be flash sterilized
Heat sensitive items: - correct answers -Cannot be flash sterilized
3
2026–2027 | Comprehensive Review
is the first step in the sterilization process. - correct answers -Cleaning
2. Central Service Technicians must wear special attire referred to as to minimize their exposure to
blood- borne pathogens and other contaminants. - correct answers -PPE
What type of a pressure is required for decontamination areas? - correct answers -Negative
The use of analytical skills to solve problems and make decisions is a component of which of the
following knowledge and skills dimensions? - correct answers -Employability skills
5. Nosocomial infections are: - correct answers -Those which occur in the course of being treated in the
hospital
6. The human resources tool that identifies major tasks performed by persons in specific positions is
called a: - correct answers -Job description
7. Which of the following is the most popular title for the central service department head? - correct
answers -Director
What is the coolest part of the sterilizer? - correct answers -Drain line of the sterilizer
9. Autoclave sterilizer is a class of device. - correct answers -Class II
1
,10. In a sterilization load containing 2 small basins, the chemicals indicators will be positioned. - correct
answers -On the top of the basins
Package condensation will occur when: - correct answers -Placing hot or warm packages in cold surfaces
What is the preferred pH of detergents used for most cleaning processes? - correct answers -Neutral pH
13. System that includes inflatable compression sleeves and a characteristic pressure modulation in
order to reduce risk of deep vein thrombosis (DVT) - correct answers -Sequential compression device
14. The moisture content of saturated steam should posses a relative humidity of: - correct answers -
97% to 100%
Which the following steps happens first when proceeding flexible endoscopies? - correct answers -Leak
testing
Information regarding cleaning processes for endoscopes should be provided by: - correct answers -The
instrument manufacturer
Which of the following statements about endoscopes is true? - correct answers -Not all endoscopes can
be processed in the AER
the FDA classifies sterilization packaging as a: - correct answers -Class Il medical device
Which of the following is NOT an acceptable sterilization packaging material? - correct answers -Canvas
2
, Wicking materials are used to: - correct answers -Allow air removal, steam penetration and facilitate
drying
When arranging plastic-paper pouches in the sterilizer, the pouches should be arranged: - correct
answers -Paper to plastic
The relative humidity of the central service department should be: - correct answers -Less than 75%
When placing ring handled instruments in an instrument tray, you should: - correct answers -Unlock the
handles and open the instruments
A material that removes electrons from another substance is called: - correct answers -An oxidizing
agent
Before an item can be placed in a liquid chemical sterile processing system they must be: - correct
answers -Cleaned
Both AORN and the joint commission recommend that: - correct answers -The use of flash sterilization
be minimized or decreased
Implantable devices: - correct answers -Should not be flash sterilized
Heat sensitive items: - correct answers -Cannot be flash sterilized
3
