A nurse is reviewing the laboratory values for a client who takes spironolactone and notes that the client's serum potassium level is 6.8 mEq/L (3.5 -5 mEq/L). The nurse notifies the provider and anticipates that the provider will provide which of the following instructions?

A. Hyperkalemia can cause potentially life-threatening cardiac dysrhythmias. Obtaining a 12-lead ECG is a priority to assess for cardiac conduction abnormalities, such as peaked T waves, widened QRS complexes, or arrhythmias. B. Fluid restriction is not a treatment for hyperkalemia and may worsen the patient’s condition if volume status is compromised. C. Potassium gluconate is a potassium supplement and would worsen hyperkalemia; it is contraindicated in this situation. D. An erythrocyte sedimentation rate (ESR) is a nonspecific test for inflammation and is not related to hyperkalemia management.