A patient with severe asthma remains wheezy after repeated inhaled bronchodilator treatment. Which medicine may be given intravenously as an additional emergency treatment?
Correct answer: A. Magnesium sulfate
- A. Magnesium sulfate
- B. Vitamin K
- C. Protamine sulfate
- D. Calcium carbonate
Explanation
Intravenous magnesium sulfate can relax bronchial smooth muscle in severe asthma that responds poorly to initial treatment. It is an adjunct, not a replacement for oxygen, inhaled bronchodilators or corticosteroids.
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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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