CHBT Infection Control and Disinfection Procedures 3

Question 1

What is the AAMI standard maximum allowable bacterial count in hemodialysis dialysate?

Accepted Answer

100 CFU/mL

Answer

AAMI standards specify that dialysate must contain fewer than 100 CFU/mL of bacteria to be considered safe for hemodialysis treatment.

Question 2

Ultrapure dialysate (meeting AAMI ultrapure standards) is particularly recommended for:

Accepted Answer

High-flux dialysis and hemodiafiltration where backfiltration could carry contaminants into the bloodstream

Answer

High-flux membranes allow backfiltration of dialysate into the blood compartment, making ultrapure dialysate essential to prevent infusion of bacteria and endotoxins.

Question 3

Which practice is MOST effective at preventing cross-contamination between hemodialysis patients?

Accepted Answer

Consistent hand hygiene between each patient contact

Answer

Hand hygiene remains the single most effective infection control measure for preventing patient-to-patient transmission of pathogens in healthcare settings.

Question 4

What does the term 'pyrogenic reaction' refer to in hemodialysis?

Accepted Answer

A febrile response caused by bacterial or endotoxin contamination of dialysate or equipment entering the bloodstream

Answer

A pyrogenic reaction is a fever and chills response triggered when pyrogens (endotoxins or bacteria) from contaminated dialysate or equipment reach the patient's bloodstream.

Question 5

How frequently should dialysis station surfaces be disinfected between patients?

Accepted Answer

After every patient treatment, before the next patient occupies the station

Answer

All dialysis station surfaces must be disinfected between each patient to prevent transmission of bloodborne pathogens and other organisms.

CHBT - Certified Hemodialysis Bio-Medical Technician Practice Test

CHBT - Certified Hemodialysis Bio-Medical Technician Practice Test

CHBT Infection Control and Disinfection Procedures 3