<prompt>  Which of the following patients is most likely to be treated with intravenous glucagon ?A young man who took cocaine and has a blood pressure of 190110 mm HgA middle aged man with type II diabetes who has not taken his regular dose of glipizide for last 4 daysAn old man with severe bradycardia and hypotension resulting from ingestion of overdose of atenololAn old woman with lactic acidosis as a complication of severe infection and shock 