<prompt> Hyperkalemia without ECG changes may be treated with all except :Calcium gluconateSalbutamolNa bicarbonateInsulin with dextrose  <response>: Calcium antagonizes the cardiac conduction abnormalities induced by potassium. In the given question, the patient has no ECG changes; therefore calcium gluconate will not be useful. Use of calcium gluconate should be restricted to life-threatening hyperkalemia. 