IAHCSMM Infection Prevention and Microbiology 5

Question 1

A healthcare worker experiences a needlestick injury in the decontamination area. The FIRST action should be to:

Accepted Answer

Wash the wound thoroughly with soap and water

Answer

Immediate thorough washing of the wound with soap and water is the first priority following a needlestick or sharps injury.

Question 2

Which of the following viruses is classified as non-enveloped and is therefore MORE resistant to disinfection?

Accepted Answer

Norovirus

Answer

Non-enveloped viruses like norovirus lack a lipid envelope, making them harder to destroy with many common disinfectants.

Question 3

The process by which bacteria transfer genetic material (including antibiotic resistance genes) between cells is called:

Accepted Answer

Conjugation

Answer

Conjugation involves direct cell-to-cell contact and transfer of plasmid DNA, rapidly spreading antibiotic resistance genes among bacteria.

Question 4

Which cleaning method is MOST effective for removing protein-based soils from surgical instruments before sterilization?

Accepted Answer

Enzymatic detergent soaking followed by mechanical scrubbing

Answer

Enzymatic detergents break down protein-based bioburden and, combined with mechanical action, provide the most effective soil removal.

Question 5

Clostridium difficile (C. diff) spores in a patient care environment are BEST eliminated by:

Accepted Answer

EPA-registered sporicidal agents (e.g., bleach-based)

Answer

C. difficile spores are resistant to many common disinfectants and require EPA-registered sporicidal agents such as sodium hypochlorite (bleach) for elimination.

(IAHCSMM) International Association of Healthcare Central Service Material Manage Practice Test

(IAHCSMM) International Association of Healthcare Central Service Material Manage Practice Test

IAHCSMM Infection Prevention and Microbiology 5