CHT Certified Hemodialysis Technician 4

Question 1

Which parameter is measured by the ionic dialysance monitor on modern dialysis machines as a real-time surrogate for urea clearance?

Accepted Answer

Dialysate conductivity changes

Answer

Ionic dialysance monitors measure changes in dialysate conductivity to estimate small-solute clearance as a real-time surrogate for urea Kt/V.

Question 2

A patient's pre-dialysis blood pressure is 200/110 mmHg. After initiating treatment and removing 1 L of fluid, BP falls to 80/50 mmHg. The technician should first:

Accepted Answer

Stop ultrafiltration and administer a 200–300 mL normal saline bolus

Answer

Intradialytic hypotension is managed first by stopping UF and administering a saline challenge to restore circulating volume.

Question 3

In dialyzer reprocessing with peracetic acid, the minimum residual volume that must be rinsed out before patient use is determined by:

Accepted Answer

The manufacturer's priming volume

Answer

The dialyzer must be rinsed thoroughly based on priming volume to dilute reprocessing chemicals below safe exposure limits before patient reuse.

Question 4

Hemolysis during dialysis can be identified by which characteristic change in the venous blood line?

Accepted Answer

Bright pink or cherry-red discoloration of blood

Answer

Hemolysis causes red blood cells to rupture, releasing hemoglobin and turning the blood bright pink or cherry-red (port wine color).

Question 5

Which of the following dialysis access types typically provides the highest blood flow rates and lowest infection risk?

Accepted Answer

Native AV fistula

Answer

A native AV fistula provides the highest flow rates, best long-term patency, and lowest infection rates of all dialysis access types.

Certified Hemodialysis Technologist/Technician Exam Practice Test

Certified Hemodialysis Technologist/Technician Exam Practice Test

CHT Certified Hemodialysis Technician 4