The nurse reviews the comprehensive metabolic panel for a client with an
electrolyte imbalance. Which data requires the most immediate intervention by the
nurse?
A. Potassium level, 3. 9 mEq/dL
B. Creatinine level, 1. 1 mg/dL
C. Sodium level, 125 mEq/L
D. Calcium level, 9 mg/dL