IAHCSMM CRCST EXAM QUESTIONS AND ANSWERS
NEWEST RATED A+ 2025/2026 NEWEST RATED A+ 100%
VERIFIED CORRECT
The physical method by which an ultrasonic units clean is called - CORRECT ANSWERS
Cavitation
Equipment should be inspected for obvious hazards such as cracked or frayed electrical cords: -
CORRECT ANSWERS whenever the equipment is cleaned
Impregnated Gauze Strips may be sterilized using: - CORRECT ANSWERS dry heat sterilization
Powered surgical instruments should be cleaned using a mechanical cleaning process. -
CORRECT ANSWERS False. They should all be cleaned manually.
Agency responsible for the MedWatch program - CORRECT ANSWERS FDA food and drug
administration
Phenolics are classified as - CORRECT ANSWERS intermediate to low level disinfectants
To prevent coagulation of proteins, water temperature should be - CORRECT ANSWERS Below
43 C (110 F)
Secondary containers of chemicals - CORRECT ANSWERS must be labeled with a copy of the
original manufacturer's label or a generic label that identifies hazard warnings and directions
These carry blood away from the heart - CORRECT ANSWERS arteries
,The percentage of hospital patients that develop a healthcare facility-associated infection. -
CORRECT ANSWERS Approximately 10%
Spiral shaped bacteria are classified as - CORRECT ANSWERS spirillum
The two most common techniques of flat wrap packaging are - CORRECT ANSWERS Square-
fold and envelope-fold
Third party reprocessors are regulated by the FDA - CORRECT ANSWERS True
In central service, the concept of "one-way flow of materials" refers to the movement of
products - CORRECT ANSWERS From soiled areas to clean processing areas within central
service
Horizontal work surfaces in the decontamination area should be cleaned and disinfected -
CORRECT ANSWERS At the beginning and end of each shift.
A material that removes electrons from another substance is Called - CORRECT ANSWERS an
oxidizing agent
Pre-Vacuum Steam Sterilizer & Steam Flush Pressure-Pulse (SFPP) - CORRECT ANSWERS Use an
active air removal system
These chemicals are used on animate (living tissue) to slow the growth of microorganisms: -
CORRECT ANSWERS antiseptics
Agency responsible for regulating EO - CORRECT ANSWERS OSHA and EPA
, Scissors with tungsten carbide cutting edges are usually identified by - CORRECT ANSWERS
gold handles
7.2 pounds per cubic foot - CORRECT ANSWERS Maximum density for linen packs
Package condensation will occur when - CORRECT ANSWERS Placing hot or warm packages in
cold surfaces
The decontamination area of the central service department should have - CORRECT ANSWERS
10 air exchanges per hour
ISO 9000 - CORRECT ANSWERS an international standard used by participating organizations to
help assure that they consistently deliver quality services and products
Air exchanges in EtO sterilizer room - CORRECT ANSWERS 10 per hour
Water purification usually involves the use of a - CORRECT ANSWERS pre and post filter
Which of the following is not an acceptable form of instrument marking? - CORRECT ANSWERS
Electric etching (engraving)
Aluminum items should be cleaned: - CORRECT ANSWERS using a to and fro motion with the
grain
Wicking materials are used to : - CORRECT ANSWERS allow air removal, steam penetration and
facilitate drying
NEWEST RATED A+ 2025/2026 NEWEST RATED A+ 100%
VERIFIED CORRECT
The physical method by which an ultrasonic units clean is called - CORRECT ANSWERS
Cavitation
Equipment should be inspected for obvious hazards such as cracked or frayed electrical cords: -
CORRECT ANSWERS whenever the equipment is cleaned
Impregnated Gauze Strips may be sterilized using: - CORRECT ANSWERS dry heat sterilization
Powered surgical instruments should be cleaned using a mechanical cleaning process. -
CORRECT ANSWERS False. They should all be cleaned manually.
Agency responsible for the MedWatch program - CORRECT ANSWERS FDA food and drug
administration
Phenolics are classified as - CORRECT ANSWERS intermediate to low level disinfectants
To prevent coagulation of proteins, water temperature should be - CORRECT ANSWERS Below
43 C (110 F)
Secondary containers of chemicals - CORRECT ANSWERS must be labeled with a copy of the
original manufacturer's label or a generic label that identifies hazard warnings and directions
These carry blood away from the heart - CORRECT ANSWERS arteries
,The percentage of hospital patients that develop a healthcare facility-associated infection. -
CORRECT ANSWERS Approximately 10%
Spiral shaped bacteria are classified as - CORRECT ANSWERS spirillum
The two most common techniques of flat wrap packaging are - CORRECT ANSWERS Square-
fold and envelope-fold
Third party reprocessors are regulated by the FDA - CORRECT ANSWERS True
In central service, the concept of "one-way flow of materials" refers to the movement of
products - CORRECT ANSWERS From soiled areas to clean processing areas within central
service
Horizontal work surfaces in the decontamination area should be cleaned and disinfected -
CORRECT ANSWERS At the beginning and end of each shift.
A material that removes electrons from another substance is Called - CORRECT ANSWERS an
oxidizing agent
Pre-Vacuum Steam Sterilizer & Steam Flush Pressure-Pulse (SFPP) - CORRECT ANSWERS Use an
active air removal system
These chemicals are used on animate (living tissue) to slow the growth of microorganisms: -
CORRECT ANSWERS antiseptics
Agency responsible for regulating EO - CORRECT ANSWERS OSHA and EPA
, Scissors with tungsten carbide cutting edges are usually identified by - CORRECT ANSWERS
gold handles
7.2 pounds per cubic foot - CORRECT ANSWERS Maximum density for linen packs
Package condensation will occur when - CORRECT ANSWERS Placing hot or warm packages in
cold surfaces
The decontamination area of the central service department should have - CORRECT ANSWERS
10 air exchanges per hour
ISO 9000 - CORRECT ANSWERS an international standard used by participating organizations to
help assure that they consistently deliver quality services and products
Air exchanges in EtO sterilizer room - CORRECT ANSWERS 10 per hour
Water purification usually involves the use of a - CORRECT ANSWERS pre and post filter
Which of the following is not an acceptable form of instrument marking? - CORRECT ANSWERS
Electric etching (engraving)
Aluminum items should be cleaned: - CORRECT ANSWERS using a to and fro motion with the
grain
Wicking materials are used to : - CORRECT ANSWERS allow air removal, steam penetration and
facilitate drying
