A patient exposed to smoke from a closed-space fire has severe confusion, hypotension and suspected cyanide poisoning. Which antidote is specifically used for this poisoning?
Correct answer: A. Hydroxocobalamin
- A. Hydroxocobalamin
- B. Vitamin K
- C. Pralidoxime
- D. Flumazenil
Explanation
Hydroxocobalamin binds cyanide to form the relatively harmless compound cyanocobalamin, which can then be excreted. Vitamin K reverses warfarin effects, pralidoxime is used in organophosphate poisoning, and flumazenil reverses selected benzodiazepine effects.
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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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