CHBT Infection Control and Disinfection Procedures

Question 1

Which organism is the most common cause of access-related bloodstream infections in hemodialysis patients?

Accepted Answer

Staphylococcus aureus

Answer

Escherichia coli

Answer

Pseudomonas aeruginosa

Answer

Candida albicans

Question 2

What level of disinfection is required for hemodialysis machine external surfaces?

Accepted Answer

Low-level disinfection with an EPA-registered hospital disinfectant

Answer

High-level disinfection

Answer

Sterilization

Answer

Simple soap and water cleaning only

Question 3

According to CDC guidelines, gloves must be changed and hand hygiene performed between patients and:

Accepted Answer

When moving between clean and contaminated tasks for the same patient

Answer

Only when visibly soiled

Answer

At the end of the shift only

Answer

Only when handling blood products

Question 4

What is the CDC-recommended strategy for preventing hepatitis B transmission in hemodialysis units?

Accepted Answer

Dedicated machines, supplies, and staff for HBsAg-positive patients, plus vaccination of susceptible patients and staff

Answer

Universal use of N95 respirators

Answer

Monthly hepatitis B testing only

Answer

Antiviral prophylaxis for all staff

Question 5

What is the purpose of performing routine cultures of dialysis water and dialysate?

Accepted Answer

To monitor bacterial counts and ensure they remain within safe limits to protect patients from gram-negative bacteremia and pyrogenic reactions

Answer

To detect chlorine residual

Answer

To verify calcium and magnesium levels

Answer

To test for endotoxins only

Question 6

Which bloodborne pathogen is MOST efficiently transmitted by needlestick injury in the hemodialysis setting?

Accepted Answer

Hepatitis B virus (HBV)

Answer

Hepatitis C virus (HCV)

Answer

HIV

Answer

Cytomegalovirus (CMV)