CDN Dialysis Adequacy and Prescription 2

Question 1

Which dialysate potassium concentration is most appropriate for a patient with a pre-dialysis serum potassium of 6.5 mEq/L?

Accepted Answer

2 mEq/L

Answer

4 mEq/L

Answer

3 mEq/L

Answer

1 mEq/L

Question 2

What is the primary purpose of sodium profiling during hemodialysis?

Accepted Answer

Improve cardiovascular stability and reduce intradialytic hypotension

Answer

Prevent hypernatremia

Answer

Increase potassium removal

Answer

Reduce bicarbonate concentration

Question 3

A patient on hemodialysis has a target dry weight of 72 kg and arrives weighing 75.5 kg. What is the interdialytic weight gain, and is it within recommended limits?

Accepted Answer

3.5 kg — exceeds the recommended 2–3 kg limit

Answer

2.5 kg — within limits

Answer

3.5 kg — within limits for a 72 kg patient

Answer

1.5 kg — below recommended minimum

Question 4

What is the maximum recommended ultrafiltration rate to minimize cardiovascular stress during hemodialysis?

Accepted Answer

13 mL/kg/hour

Answer

5 mL/kg/hour

Answer

10 mL/kg/hour

Answer

20 mL/kg/hour

Question 5

Which dialysate bicarbonate concentration is typically used for hemodialysis patients with metabolic acidosis?

Accepted Answer

35–38 mEq/L

Answer

20–22 mEq/L

Answer

25–28 mEq/L

Answer

45–50 mEq/L

Question 6

What blood flow rate and dialysate flow rate combination best optimizes small solute clearance during standard hemodialysis?

Accepted Answer

Qb 300 mL/min / Qd 500 mL/min

Answer

Qb 200 mL/min / Qd 300 mL/min

Answer

Qb 150 mL/min / Qd 800 mL/min

Answer

Qb 500 mL/min / Qd 200 mL/min