A 62-year-old man on ICU develops profound bradycardia (HR 25 bpm) and hypotension (BP 60/30) shortly after receiving a dose of IV neostigmine for reversal of neuromuscular blockade. What is the mechanism and treatment?ANeostigmine directly depresses the myocardium - treat with dobutamineBNeostigmine inhibits acetylcholinesterase, causing excessive muscarinic stimulation (bradycardia, salivation, bronchospasm) - treat with IV atropine or glycopyrroniumCThis is an anaphylactic reaction to neostigmine - treat with IM adrenalineDNeostigmine causes direct vasodilation - treat with phenylephrineEThis is unrelated to neostigmineCheck my answer