Question

A 67-year-old man with chronic kidney disease stage 4 presents with muscle weakness. His medications include lisinopril and spironolactone. Laboratory results show potassium 6.4 mEq/L, creatinine 2.8 mg/dL, and ECG with peaked T waves. He is haemodynamically stable. Which is the most appropriate initial therapy to reduce the risk of arrhythmia?

Accepted Answer

Administer oral sodium polystyrene sulphonate only

Answer

Administer intravenous calcium gluconate

Answer

Administer loop diuretic alone

Answer

Stop lisinopril and spironolactone only

Answer

Start chronic haemodialysis immediately without other measures

Practice question