CRCST CERTIFICATION ACTUAL FINAL EXAM | WITH COMPLETE
QUESTIONS AND ANSWERS | 2025/2026 LATEST UPDATED | 100 %
RATED AND VERIFIED SOLUTIONS | GET AN A+
What is the primary purpose of decontamination? - (ANSWER)To reduce the presence of
microorganisms and prevent the soread of infections.
What's is the difference between disinfection and sterilization? - (ANSWER)Disinfection
eliminates many or all pathogenic microorganisms except bacterial spores, while sterilization
destroys all microorganisms including bacterial spores
Which type of cleaning solution is most commonly used for instrument decontamination? -
(ANSWER)Enzymatic detergents
What is the recommended temperature for manual cleaning of instruments? -
(ANSWER)Minimum of 110 degree Fahrenheit ( 43 degrees Celsius)
Why are prolonged soaking tines discouraged during instrument cleaning? - (ANSWER)It can
cause instrument discoloration and compromise the instruments integrity
,What's does PPE stand for in the context of decontamination? - (ANSWER)Personal protective
equipment
How does ultrasonic cleaning work? - (ANSWER)It uses sound waves to produce microscopic
bubbles that implode on contact, removing debris from instruments
What is the significance of point of use cleaning? - (ANSWER)It refers to the cleaning of
instruments immediately after use, at the location where they were used
Which of the following is not a factor affecting the efficiency of disinfection process -
(ANSWER)Color of the disinfectant
Why is it important to rinse instruments after cleaning? - (ANSWER)To remove any residual
detergent and prevent spotting or staining
Name a common method of cleaning surgical instruments - (ANSWER)Manual scrubbing with
appropriate detergent
What is an enzymatic cleaner? - (ANSWER)A detergent containing enzymes that breaking
down organic material
,How does temperature affect the cleaning process? - (ANSWER)Higher temperature can
improve cleaning effectiveness but may damage sensitive instruments
What is the role of pH in detergents used for decontamination? - (ANSWER)It affects the
detergent's ability to break down soils and proteins
What is an ultrasonic cleaner? - (ANSWER)A device that uses high frequency sound waves to
remove debris from instruments.
What is the purpose of disinfection in the decontamination process? - (ANSWER)To reduce the
level of microbial contamination
What are high level disinfectants? - (ANSWER)Chemical agents capable of killing spores and
high numbers or microorganisms
What are the difference between high-level; and low level disinfectants? - (ANSWER)High
level disinfectants kill more types of microorganisms including spores.
, What is an autoclave? - (ANSWER)A device that uses steam under pressure to sterilize medical
equipment
Explain the process of sterilization - (ANSWER)The complete elimination of all forms of
microbial life including spores
What is the importance of following manufacturers instruction for cleaning agents? -
(ANSWER)Ensuring the effectiveness of the cleaning process and preventing damage to
instruments
What are the risks of improper decontamination? - (ANSWER)Infection transmission and
damage to medical equipment
What personal protective equipments should be worn during the decontamination process? -
(ANSWER)Gloves
Gown
Mask
Eye protection
QUESTIONS AND ANSWERS | 2025/2026 LATEST UPDATED | 100 %
RATED AND VERIFIED SOLUTIONS | GET AN A+
What is the primary purpose of decontamination? - (ANSWER)To reduce the presence of
microorganisms and prevent the soread of infections.
What's is the difference between disinfection and sterilization? - (ANSWER)Disinfection
eliminates many or all pathogenic microorganisms except bacterial spores, while sterilization
destroys all microorganisms including bacterial spores
Which type of cleaning solution is most commonly used for instrument decontamination? -
(ANSWER)Enzymatic detergents
What is the recommended temperature for manual cleaning of instruments? -
(ANSWER)Minimum of 110 degree Fahrenheit ( 43 degrees Celsius)
Why are prolonged soaking tines discouraged during instrument cleaning? - (ANSWER)It can
cause instrument discoloration and compromise the instruments integrity
,What's does PPE stand for in the context of decontamination? - (ANSWER)Personal protective
equipment
How does ultrasonic cleaning work? - (ANSWER)It uses sound waves to produce microscopic
bubbles that implode on contact, removing debris from instruments
What is the significance of point of use cleaning? - (ANSWER)It refers to the cleaning of
instruments immediately after use, at the location where they were used
Which of the following is not a factor affecting the efficiency of disinfection process -
(ANSWER)Color of the disinfectant
Why is it important to rinse instruments after cleaning? - (ANSWER)To remove any residual
detergent and prevent spotting or staining
Name a common method of cleaning surgical instruments - (ANSWER)Manual scrubbing with
appropriate detergent
What is an enzymatic cleaner? - (ANSWER)A detergent containing enzymes that breaking
down organic material
,How does temperature affect the cleaning process? - (ANSWER)Higher temperature can
improve cleaning effectiveness but may damage sensitive instruments
What is the role of pH in detergents used for decontamination? - (ANSWER)It affects the
detergent's ability to break down soils and proteins
What is an ultrasonic cleaner? - (ANSWER)A device that uses high frequency sound waves to
remove debris from instruments.
What is the purpose of disinfection in the decontamination process? - (ANSWER)To reduce the
level of microbial contamination
What are high level disinfectants? - (ANSWER)Chemical agents capable of killing spores and
high numbers or microorganisms
What are the difference between high-level; and low level disinfectants? - (ANSWER)High
level disinfectants kill more types of microorganisms including spores.
, What is an autoclave? - (ANSWER)A device that uses steam under pressure to sterilize medical
equipment
Explain the process of sterilization - (ANSWER)The complete elimination of all forms of
microbial life including spores
What is the importance of following manufacturers instruction for cleaning agents? -
(ANSWER)Ensuring the effectiveness of the cleaning process and preventing damage to
instruments
What are the risks of improper decontamination? - (ANSWER)Infection transmission and
damage to medical equipment
What personal protective equipments should be worn during the decontamination process? -
(ANSWER)Gloves
Gown
Mask
Eye protection
