A patient receives adenosine for a regular narrow-complex tachycardia and briefly reports flushing and chest pressure. The ECG shows a short pause before the rhythm returns. What is the best nursing interpretation?
Correct answer: A. Expected transient drug effects
- A. Expected transient drug effects
- B. Evidence of severe digoxin toxicity
- C. A delayed allergic reaction
- D. A sign of permanent heart block
Explanation
Adenosine commonly causes brief flushing, chest discomfort and transient slowing or asystole because its half-life is very short. Continuous ECG monitoring is required, but these short-lived effects do not by themselves indicate permanent heart block.
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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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