<unk> is used in the treatment of hypokalemia as an electrolyte replenisher. With a molecular weight of approximately 75 and a valence of 1, the use of KCl for electrolytes makes 75 mg the equivalent of 1 mEq. Some cardiac surgery procedures cannot be carried out on the beating heart. For these procedures, the surgical team will bypass the heart with a heart-lung machine and inject<unk> into the heart muscle to stop the heartbeat.
Potassium chloride 
Calcium chloride
Sodium bicarbonate
Potassium canrenoate
Ringer's lactate solution
Calcium gluconate
Potassium bromide
Mannitol