Decontamination, Sterilization and Disinfection Quiz – 2026 – Study and Practice
Guide
To prevent density, instrument sets should not exceed:
A. 15 lbs
B. 20 lbs
C. 25 lbs
D. 10 lbs - correct answer ✔✔ C. 25 lbs
Before transporting instruments to the decontamination room, what should be done?
A. confirm instruments are dry
B. presoak instruments in detergent solution
C. wipe off instruments with towel
D. rinse instruments with saline - correct answer ✔✔ B. presoak instruments in detergent
solution
What is the minimum number of minutes to sterilize unwrapped metal instruments with lumens
in the gravity displacement sterilizer at 270º F?
A. 5 minutes
B. 10 minutes
C. 15 minutes
D. 20 minutes - correct answer ✔✔ B. 10 minutes
In addition to temperature, time and moisture, what is the fourth factor that determines the
outcome of the steam sterilization process?
A. concentration
B. aeration
, C. weight
D. pressure - correct answer ✔✔ D. pressure
Which solution is best for pre-soaking instruments in the OR at the END of a procedure?
A. Iodine-based
B. Sterile water
C. Enzyme
D. Saline - correct answer ✔✔ C. Enzyme
What does the term strike through mean?
A. rupture of heat seal during sterilization
B. failure of biological indicator during sterilization
C. perforation of sharp object through sterile wrapper
D. soaking of moisture from unsterile to sterile layers - correct answer ✔✔ D. soaking of
moisture from unsterile to sterile layers
The unsterile size of the perimeter of a sterile wrap is:
A. 1/2 inch
B. 1 inch
C. 2 inches
D. 3 inches - correct answer ✔✔ B. 1 inch
Cell destruction by steam sterilization occurs by:
A. Cellular membrane damage
B. Interrupt cellular division
C. Altering cellular DNA
Guide
To prevent density, instrument sets should not exceed:
A. 15 lbs
B. 20 lbs
C. 25 lbs
D. 10 lbs - correct answer ✔✔ C. 25 lbs
Before transporting instruments to the decontamination room, what should be done?
A. confirm instruments are dry
B. presoak instruments in detergent solution
C. wipe off instruments with towel
D. rinse instruments with saline - correct answer ✔✔ B. presoak instruments in detergent
solution
What is the minimum number of minutes to sterilize unwrapped metal instruments with lumens
in the gravity displacement sterilizer at 270º F?
A. 5 minutes
B. 10 minutes
C. 15 minutes
D. 20 minutes - correct answer ✔✔ B. 10 minutes
In addition to temperature, time and moisture, what is the fourth factor that determines the
outcome of the steam sterilization process?
A. concentration
B. aeration
, C. weight
D. pressure - correct answer ✔✔ D. pressure
Which solution is best for pre-soaking instruments in the OR at the END of a procedure?
A. Iodine-based
B. Sterile water
C. Enzyme
D. Saline - correct answer ✔✔ C. Enzyme
What does the term strike through mean?
A. rupture of heat seal during sterilization
B. failure of biological indicator during sterilization
C. perforation of sharp object through sterile wrapper
D. soaking of moisture from unsterile to sterile layers - correct answer ✔✔ D. soaking of
moisture from unsterile to sterile layers
The unsterile size of the perimeter of a sterile wrap is:
A. 1/2 inch
B. 1 inch
C. 2 inches
D. 3 inches - correct answer ✔✔ B. 1 inch
Cell destruction by steam sterilization occurs by:
A. Cellular membrane damage
B. Interrupt cellular division
C. Altering cellular DNA
