Cardiac arrhythmia and hypopotassemia in association with lithium carbonate overdose

Cardiac arrhythmia and electrolyte disturbances can occur as a complication of toxic serum levels of lithium salts. In this report, the development of sinus bradycardia and idioventricular rhythm with severe hypokalemia following an overdose ingestion of lithium carbonate was presented. Possible mechanisms and precautionary measures were discussed.