Which of the following patients is most likely to be treated with intravenous glucagon ?: (A) A young man who took cocaine and has a blood pressure of 190/110 mm Hg, (B) A middle aged man with type II diabetes who has not taken his regular dose of glipizide for last 4 days, (C) An old man with severe bradycardia and hypotension resulting from ingestion of overdose of atenolol, (D) An old woman with lactic acidosis as a complication of severe infection and shock
Answer is C. None