Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

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In the event of an oral anticoagulant overdose, what is the antidote?

  1. Protamine sulfate

  2. Heparin

  3. Vitamin K

  4. Dipyridamole

The correct answer is: Vitamin K

Vitamin K is the antidote for an overdose of oral anticoagulants. Although Protamine sulfate is the antidote for heparin overdose, it is not effective for oral anticoagulants. Option B, Heparin, is also a type of anticoagulant and is not an antidote. Dipyridamole is not an antidote for oral anticoagulant overdose, but rather a medication used for preventing blood clots. Therefore, the correct answer is Vitamin K, as it is specifically used as an antidote for an overdose of oral anticoagulants.

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