A patient takes a large amount of a calcium channel blocker and develops hypotension, bradycardia and poor cardiac output. Which treatment may support cardiac function in this poisoning?
Correct answer: A. Intravenous calcium
- A. Intravenous calcium
- B. Intravenous vitamin K
- C. Oral activated charcoal alone
- D. Intravenous methylene blue
Explanation
Intravenous calcium can improve myocardial contractility and vascular tone in serious calcium channel blocker poisoning. Vitamin K reverses warfarin, methylene blue treats selected methemoglobinaemia, and charcoal alone cannot correct severe cardiovascular toxicity.
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About Emergency Drugs and Antidotes
Emergency pharmacology covers drugs used in cardiac arrest, shock, severe allergy, acute asthma, seizures, poisoning and hypoglycaemia, including adrenaline, atropine, naloxone, flumazenil and selected antidotes. The focus is on indications, routes, rapid adverse effects, dose safety and matching a toxic substance with its specific reversal agent.
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