A woman receiving magnesium sulfate develops absent deep tendon reflexes, respiratory depression and increasing drowsiness. Which medicine should the nurse prepare as the antidote?
Correct answer: A. Calcium gluconate
- A. Calcium gluconate
- B. Sodium bicarbonate
- C. Potassium chloride
- D. Protamine sulfate
Explanation
Calcium gluconate antagonises the neuromuscular and cardiac effects of magnesium toxicity and should be prepared urgently. The other medicines do not reverse excessive magnesium and may create additional electrolyte or bleeding risks.
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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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