Which of the following drugs stabilize the cardiac membrane in a patient with hyperkalemia?

Correct option is C

Ans. (c) Sol. Calcium gluconate is used to stabilize the cardiac membrane in patients with hyperkalemia, helping prevent life-threatening arrhythmias by reducing the effects of elevated potassium on the heart's electrical activity.
Explanation of each option:
· (a) Sodium bicarbonate – Incorrect. Sodium bicarbonate can temporarily shift potassium into cells but does not stabilize the cardiac membrane.
· (b) Insulin – Incorrect. Insulin, when given with glucose, helps shift potassium into cells, but it does not directly stabilize the cardiac membrane.
· (c) Calcium gluconate – Correct. Calcium gluconate is used to stabilize the cardiac membrane by preventing the effects of hyperkalemia on the heart's electrical system.
· (d) Digoxin – Incorrect. Digoxin is a cardiac glycoside used to treat heart failure and arrhythmias but does not stabilize the cardiac membrane in hyperkalemia.