AMCA Infection Prevention 3

Question 1

Which hand hygiene product is most effective against Clostridium difficile (C. diff) spores?

Accepted Answer

Plain soap and water

Answer

Soap and water with vigorous friction is required for C. difficile because alcohol-based hand rubs do not effectively remove or destroy its spores.

Question 2

What does the term 'sterilization' mean in infection control?

Accepted Answer

Elimination of all forms of microbial life, including spores

Answer

Sterilization destroys all forms of microbial life, including highly resistant bacterial spores, which distinguishes it from disinfection and cleaning.

Question 3

A patient is placed on droplet precautions. What is the minimum distance at which a healthcare worker does NOT need to wear a surgical mask?

Accepted Answer

3 feet

Answer

Droplet precautions require a surgical mask when within 3 feet of the patient, as large respiratory droplets typically do not travel beyond that distance.

Question 4

Which of the following is an example of a reservoir in the chain of infection?

Accepted Answer

A contaminated water supply

Answer

A reservoir is the habitat where the infectious agent lives and multiplies; a contaminated water supply is a classic environmental reservoir.

Question 5

Standard precautions apply to which patients?

Accepted Answer

All patients regardless of diagnosis or infection status

Answer

Standard precautions apply to all patients in all healthcare settings regardless of their diagnosis or presumed infection status.

(AMCA) American Medical Certification Association Practice Test

(AMCA) American Medical Certification Association Practice Test

AMCA Infection Prevention 3