MACE Medication Assistant Exam Prep

Category - Pharmacological

The physician is treating a pregnant woman and has ordered the administration of magnesium sulfate IV to prevent convulsions. Which of the following medications should be readily available as an antidote for magnesium sulfate toxicity?

  1. Naloxone
  2. Calcium gluconate
  3. Protamine sulfate
  4. Acetylcysteine
Explanation

Answer: B - Calcium gluconate is the antagonist or antidote for magnesium sulfate. Naloxone reverses the action of opioids, such as morphine. Protamine sulfate is the antidote for a heparin overdose. N-acetylcysteine is the accepted treatment for acetaminophen overdose.

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