A patient has symptomatic bradycardia with dizziness and hypotension. Which drug is commonly used to increase the heart rate?
Correct answer: A. Atropine
- A. Atropine
- B. Naloxone
- C. Adenosine
- D. Lidocaine
Explanation
Atropine blocks parasympathetic activity at the sinoatrial and atrioventricular nodes and can improve symptomatic bradycardia. Adenosine is mainly used to terminate certain supraventricular tachycardias, so it could worsen bradycardia.
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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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