CDN Dialysis Adequacy and Prescription

Question 1

What does the Kt/V measurement represent in hemodialysis?

Accepted Answer

Dialyzer clearance times treatment time divided by urea distribution volume

Answer

Blood flow rate times treatment volume

Answer

Potassium-to-volume ratio

Answer

Fluid removal rate per treatment

Question 2

What is the minimum single-pool Kt/V (spKt/V) recommended by KDOQI guidelines for thrice-weekly hemodialysis?

Accepted Answer

1.2

Answer

0.8

Answer

1.0

Answer

1.4

Question 3

Which factor would most directly increase the Kt/V delivered to a patient?

Accepted Answer

Extending the treatment time from 3 to 4 hours

Answer

Increasing the dialysate sodium concentration

Answer

Using a larger gauge needle

Answer

Increasing ultrafiltration rate

Question 4

What is the primary purpose of using a high-flux dialyzer compared to a low-flux dialyzer?

Accepted Answer

Greater removal of middle molecules and beta-2 microglobulin

Answer

Better sodium removal

Answer

Reduced heparin requirement

Answer

Lower blood flow requirements

Question 5

A patient's pre-dialysis BUN is 80 mg/dL and post-dialysis BUN is 28 mg/dL. What is the urea reduction ratio (URR)?

Accepted Answer

65%

Answer

35%

Answer

45%

Answer

72%

Question 6

What is the recommended target URR for hemodialysis patients according to current guidelines?

Accepted Answer

≥65%

Answer

≥50%

Answer

≥55%

Answer

≥80%