Free CCHT Dialyzer Reprocessing and Reuse Questions and Answers 1

Question 1

What is the primary purpose of the Total Cell Volume (TCV) or Fiber Bundle Volume (FBV) test during dialyzer reprocessing?

Accepted Answer

To ensure the dialyzer can still effectively clear waste products

Answer

To check for residual sterilant in the dialyzer

Answer

To confirm the integrity of the dialyzer membrane and check for leaks

Answer

To verify the patient's name is correctly matched to the dialyzer

Question 2

Which chemical is most commonly used as the sterilant/disinfectant in modern dialyzer reprocessing systems?

Accepted Answer

Peracetic Acid

Answer

Sodium Hypochlorite

Answer

Formaldehyde

Answer

Glutaraldehyde

Question 3

Before a reprocessed dialyzer is used for a patient's treatment, what is the most critical final check that must be performed at the patient's station?

Accepted Answer

Testing for residual sterilant

Answer

Verifying the TCV is above 90%

Answer

Checking the external casing for cracks

Answer

Confirming the original prime volume

Question 4

According to AAMI standards, a reprocessed dialyzer must be discarded if its fiber bundle volume (FBV) drops below what percentage of its original measured volume?

Accepted Answer

80%

Answer

90%

Answer

75%

Answer

70%

Question 5

What does a failed pressure test during dialyzer reprocessing indicate?

Accepted Answer

A leak in the dialyzer membrane

Answer

The dialyzer is excessively clotted

Answer

The TCV is too low for reuse

Answer

There is residual sterilant present

Question 6

Proper labeling of a reprocessed dialyzer is crucial for patient safety. Which of the following pieces of information is required on the label?

Accepted Answer

The number of previous uses

Answer

The name of the technician who performed the reprocessing

Answer

The brand of the reprocessing machine used

Answer

The patient's date of birth

Question 7

During the reprocessing procedure, what is the purpose of the 'reverse ultrafiltration' step?

Accepted Answer

To force cleaning agents from the dialysate compartment to the blood compartment

Answer

To measure the total cell volume of the blood compartment

Answer

To sterilize the outside of the dialyzer casing

Answer

To test for leaks in the membrane by applying positive pressure