CSR Fluid Management and Edema Control

Question 1

In hemodialysis patients, the primary driver of thirst and excessive fluid intake between dialysis sessions is:

Accepted Answer

High dietary sodium intake increasing serum osmolality and stimulating osmoreceptors in the hypothalamus to generate thirst

Answer

Inadequate dialysis dose causing uremia

Answer

Hypokalemia from dialysis causing thirst as a compensatory mechanism

Answer

Elevated parathyroid hormone stimulating thirst centers

Question 2

A hemodialysis patient with consistent interdialytic weight gain (IDWG) of 4–5 kg is at increased risk for which complication directly from the large ultrafiltration rate required to remove this excess fluid?

Accepted Answer

Intradialytic hypotension (IDH) from rapid volume removal exceeding plasma refill rate, leading to cardiovascular stress and end-organ ischemia

Answer

Hyperphosphatemia from rapid phosphorus removal

Answer

Hyperkalemia from rapid potassium removal

Answer

Uremic encephalopathy from rapid urea clearance

Question 3

For a non-dialysis CKD Stage 4 patient with peripheral edema and mild hypertension, what is the MOST appropriate non-pharmacological intervention?

Accepted Answer

Sodium restriction to < 2.3 g/day (100 mEq/day), combined with leg elevation and moderate physical activity to improve venous return

Answer

Complete fluid restriction to 500 mL/day

Answer

High sodium intake to maintain intravascular volume

Answer

Dietary potassium restriction only

Question 4

A patient with nephrotic syndrome has serum albumin of 1.9 g/dL and massive edema. Beyond dietary sodium restriction, which nutritional intervention directly addresses the oncotic pressure deficit causing the edema?

Accepted Answer

IV albumin infusion (as a medical intervention to temporarily restore plasma oncotic pressure) — not a dietary intervention; dietary protein should match DRI as high protein worsens proteinuria

Answer

High-protein diet (> 3 g/kg/day) to rapidly replenish albumin

Answer

Complete dietary fat restriction to reduce edema formation

Answer

Complete fluid restriction to 200 mL/day

Question 5

When educating a hemodialysis patient about fluid restriction, which PRACTICAL strategy is MOST effective for reducing thirst without excessive fluid intake?

Accepted Answer

Using small sips from small cups, sucking on ice chips or frozen fruit, chewing gum, and rinsing the mouth — targeting the oral dryness sensation without significant fluid intake

Answer

Drinking large volumes of ice water all at once to satisfy thirst quickly

Answer

Switching to high-sodium broths to create a satisfied feeling

Answer

Drinking more fluid in the morning when there is more 'room' for fluid

Question 6

Ultrafiltration rate (UFR) guidelines for hemodialysis recommend maintaining UFR below what threshold to minimize cardiovascular risk?

Accepted Answer

UFR ≤ 13 mL/kg/hour (ideally ≤ 10 mL/kg/hour) to minimize intradialytic hemodynamic instability and cardiovascular organ damage

Answer

UFR < 20 mL/kg/hour

Answer

UFR < 30 mL/kg/hour

Answer

UFR has no clinical guideline threshold