CDN Fluid and Electrolyte Balance in Dialysis

Question 1

Which parameter is used to determine the ultrafiltration volume goal for a hemodialysis patient?

Accepted Answer

Difference between current weight and estimated dry weight

Answer

Predialysis BUN level

Answer

Serum creatinine level

Answer

Residual renal function

Question 2

A dialysis patient's predialysis serum potassium is 6.8 mEq/L. Which dialysate potassium concentration is most appropriate?

Accepted Answer

2.0 mEq/L

Answer

4.0 mEq/L

Answer

3.0 mEq/L

Answer

0 mEq/L

Question 3

What is the normal serum phosphorus target range for dialysis patients per KDIGO guidelines?

Accepted Answer

2.5–4.5 mg/dL

Answer

1.0–2.0 mg/dL

Answer

3.5–5.5 mg/dL

Answer

4.5–6.5 mg/dL

Question 4

Which fluid restriction guideline is commonly recommended for anuric hemodialysis patients?

Accepted Answer

Urine output plus 500–750 mL/day

Answer

500 mL/day

Answer

Urine output plus 1,000 mL/day

Answer

No restriction needed

Question 5

Hypermagnesemia in dialysis patients most commonly results from which of the following?

Accepted Answer

Regular use of magnesium-containing antacids or laxatives

Answer

Excessive dietary protein intake

Answer

High dialysate magnesium concentration

Answer

Hyperparathyroidism

Question 6

A dialysis patient presents with a serum calcium of 11.8 mg/dL. Which medication is the most likely culprit?

Accepted Answer

Calcium carbonate phosphate binder

Answer

Sevelamer carbonate

Answer

Cinacalcet

Answer

Lanthanum carbonate