CHT Certified Hemodialysis Technician 2

Question 1

Which water treatment component is primarily responsible for removing chloramines from municipal water supplies before dialysis?

Accepted Answer

Activated carbon tanks

Answer

Activated carbon tanks adsorb chloramines, which are not removed by softeners or reverse osmosis and can cause hemolytic anemia if present in dialysate.

Question 2

A patient on hemodialysis develops sudden rigors, fever of 103°F, and hypotension 30 minutes into treatment. The most likely cause is:

Accepted Answer

Pyrogenic reaction from endotoxin contamination

Answer

Pyrogenic reactions present with fever and rigors and are caused by endotoxin fragments entering the blood from contaminated dialysate.

Question 3

The primary purpose of the bicarbonate concentrate in dialysate preparation is to:

Accepted Answer

Correct metabolic acidosis in the patient

Answer

Bicarbonate in dialysate diffuses into the patient's blood to buffer the metabolic acidosis that accumulates in renal failure.

Question 4

When priming a dialyzer with saline, the correct direction of flow through the blood compartment is:

Accepted Answer

Arterial port to venous port (bottom to top)

Answer

Priming flows from the arterial (inlet) port upward to the venous (outlet) port to expel air from the blood compartment in the direction blood will travel.

Question 5

The Kt/V target recommended by KDOQI guidelines for thrice-weekly hemodialysis patients is a minimum of:

Accepted Answer

1.2

Answer

KDOQI guidelines recommend a minimum single-pool Kt/V of 1.2 per treatment for patients on thrice-weekly hemodialysis schedules.

Certified Hemodialysis Technologist/Technician Exam Practice Test

Certified Hemodialysis Technologist/Technician Exam Practice Test

CHT Certified Hemodialysis Technician 2