CMLA Infection Control 4

Question 1

What is the recommended sequence for donning (putting on) PPE in a healthcare setting?

Accepted Answer

Gown → mask/respirator → eye protection → gloves

Answer

The CDC recommends donning gown first, then mask or respirator, then eye protection, and finally gloves so each layer protects the previous one.

Question 2

Which bloodborne pathogen has the highest risk of transmission following a needle-stick injury?

Accepted Answer

Hepatitis B virus (HBV)

Answer

Hepatitis B virus has a transmission risk of up to 30% after a needle-stick from a HBeAg-positive source, far higher than HIV or HCV.

Question 3

In the laboratory, when must gloves be changed?

Accepted Answer

After every patient specimen and when contaminated

Answer

Gloves must be changed between patients and whenever they become contaminated to prevent cross-contamination of specimens and surfaces.

Question 4

Which of the following is classified as an OPIM (Other Potentially Infectious Material) under OSHA's Bloodborne Pathogen Standard?

Accepted Answer

Cerebrospinal fluid

Answer

Cerebrospinal fluid is specifically listed as an OPIM under OSHA's Bloodborne Pathogen Standard along with semen, vaginal secretions, and other body fluids.

Question 5

A phlebotomist sustains a needle-stick injury from a patient of unknown HIV status. What is the FIRST step in post-exposure management?

Accepted Answer

Wash the wound with soap and water and report the exposure

Answer

The immediate priority after a needle-stick is to wash the wound thoroughly and report the incident so a post-exposure protocol can be initiated.

(CMLA) Certified Medical Laboratory Assistant Practice Test

(CMLA) Certified Medical Laboratory Assistant Practice Test

CMLA Infection Control 4