Difficulty: Medium
Average Score: 75%
Simulated
The nurse is administering sodium polystyrene sulfonate to a client in acute kidney injury (AKI). Which laboratory finding indicates that the medication has been effective? Reference Range: Glucose [74 to 106 mg/dL (4.1 to 5.9 mmol/L)] Hemoglobin [14 to 18 g/dL (140 to 180 g/L)] Potassium [3.5 to 5 mEq/L (3.5 to 5 mmol/L)] Ammonia [10 to 80 ╬╝g/dL (6 to 47 ╬╝mol/L)]
Correct answer
C
Rationale
Sodium polystyrene sulfonate lowers potassium in hyperkalemia. A potassium level of 3.8 mEq/L (normal) indicates effectiveness. Ammonia, glucose, and hemoglobin are unaffected.