During adult cardiac arrest, which action best describes the role of adrenaline?
Correct answer: A. It increases coronary and cerebral perfusion pressure
- A. It increases coronary and cerebral perfusion pressure
- B. It dissolves the clot causing the arrest
- C. It reverses opioid-induced respiratory depression
- D. It relaxes bronchial smooth muscle only
Explanation
Adrenaline causes vasoconstriction, which can increase coronary and cerebral perfusion pressure during cardiopulmonary resuscitation. It does not dissolve clots or act as a specific antidote for opioid 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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