IAHCSMM CRCST EXAM QUESTIONS
AND CORRECT ANSWERS VERIFIED
2025/2026.
The physical method by which an ultrasonic units clean is called - ANS Cavitation
Equipment should be inspected for obvious hazards such as cracked or frayed electrical cords: -
ANS whenever the equipment is cleaned
Impregnated Gauze Strips may be sterilized using: - ANS dry heat sterilization
Powered surgical instruments should be cleaned using a mechanical cleaning process. -
ANS False. They should all be cleaned manually.
Agency responsible for the MedWatch program - ANS FDA food and drug administration
Phenolics are classified as - ANS intermediate to low level disinfectants
To prevent coagulation of proteins, water temperature should be - ANS Below 43 C (110 F)
Secondary containers of chemicals - ANS must be labeled with a copy of the original
manufacturer's label or a generic label that identifies hazard warnings and directions
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,These carry blood away from the heart - ANS arteries
The percentage of hospital patients that develop a healthcare facility-associated infection. -
ANS Approximately 10%
Spiral shaped bacteria are classified as - ANS spirillum
The two most common techniques of flat wrap packaging are - ANS Square-fold and
envelope-fold
Third party reprocessors are regulated by the FDA - ANS True
In central service, the concept of "one-way flow of materials" refers to the movement of
products - ANS From soiled areas to clean processing areas within central service
Horizontal work surfaces in the decontamination area should be cleaned and disinfected -
ANS At the beginning and end of each shift.
A material that removes electrons from another substance is Called - ANS an oxidizing agent
Pre-Vacuum Steam Sterilizer & Steam Flush Pressure-Pulse (SFPP) - ANS Use an active air
removal system
These chemicals are used on animate (living tissue) to slow the growth of microorganisms: -
ANS antiseptics
Agency responsible for regulating EO - ANS OSHA and EPA
Scissors with tungsten carbide cutting edges are usually identified by - ANS gold handles
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, 7.2 pounds per cubic foot - ANS Maximum density for linen packs
Package condensation will occur when - ANS Placing hot or warm packages in cold surfaces
The decontamination area of the central service department should have - ANS 10 air
exchanges per hour
ISO 9000 - ANS an international standard used by participating organizations to help assure
that they consistently deliver quality services and products
Air exchanges in EtO sterilizer room - ANS 10 per hour
Water purification usually involves the use of a - ANS pre and post filter
Which of the following is not an acceptable form of instrument marking? - ANS Electric
etching (engraving)
Aluminum items should be cleaned: - ANS using a to and fro motion with the grain
Wicking materials are used to : - ANS allow air removal, steam penetration and facilitate
drying
Exchange cart system - ANS The inventory system that uses two identical carts to facilitate
Supply replenishment is called the.
The largest operating channel of an endoscope is the ___ channel? - ANS Instrument
Solution used to remove the white, hard-to-remove substance that sometimes appears on sinks
and equipment - ANS descaler
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND CORRECT ANSWERS VERIFIED
2025/2026.
The physical method by which an ultrasonic units clean is called - ANS Cavitation
Equipment should be inspected for obvious hazards such as cracked or frayed electrical cords: -
ANS whenever the equipment is cleaned
Impregnated Gauze Strips may be sterilized using: - ANS dry heat sterilization
Powered surgical instruments should be cleaned using a mechanical cleaning process. -
ANS False. They should all be cleaned manually.
Agency responsible for the MedWatch program - ANS FDA food and drug administration
Phenolics are classified as - ANS intermediate to low level disinfectants
To prevent coagulation of proteins, water temperature should be - ANS Below 43 C (110 F)
Secondary containers of chemicals - ANS must be labeled with a copy of the original
manufacturer's label or a generic label that identifies hazard warnings and directions
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,These carry blood away from the heart - ANS arteries
The percentage of hospital patients that develop a healthcare facility-associated infection. -
ANS Approximately 10%
Spiral shaped bacteria are classified as - ANS spirillum
The two most common techniques of flat wrap packaging are - ANS Square-fold and
envelope-fold
Third party reprocessors are regulated by the FDA - ANS True
In central service, the concept of "one-way flow of materials" refers to the movement of
products - ANS From soiled areas to clean processing areas within central service
Horizontal work surfaces in the decontamination area should be cleaned and disinfected -
ANS At the beginning and end of each shift.
A material that removes electrons from another substance is Called - ANS an oxidizing agent
Pre-Vacuum Steam Sterilizer & Steam Flush Pressure-Pulse (SFPP) - ANS Use an active air
removal system
These chemicals are used on animate (living tissue) to slow the growth of microorganisms: -
ANS antiseptics
Agency responsible for regulating EO - ANS OSHA and EPA
Scissors with tungsten carbide cutting edges are usually identified by - ANS gold handles
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, 7.2 pounds per cubic foot - ANS Maximum density for linen packs
Package condensation will occur when - ANS Placing hot or warm packages in cold surfaces
The decontamination area of the central service department should have - ANS 10 air
exchanges per hour
ISO 9000 - ANS an international standard used by participating organizations to help assure
that they consistently deliver quality services and products
Air exchanges in EtO sterilizer room - ANS 10 per hour
Water purification usually involves the use of a - ANS pre and post filter
Which of the following is not an acceptable form of instrument marking? - ANS Electric
etching (engraving)
Aluminum items should be cleaned: - ANS using a to and fro motion with the grain
Wicking materials are used to : - ANS allow air removal, steam penetration and facilitate
drying
Exchange cart system - ANS The inventory system that uses two identical carts to facilitate
Supply replenishment is called the.
The largest operating channel of an endoscope is the ___ channel? - ANS Instrument
Solution used to remove the white, hard-to-remove substance that sometimes appears on sinks
and equipment - ANS descaler
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
