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

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How can a heparin overdose be reversed?

Vitamin K
Protamine sulfate
Warfarin
Tranexamic acid

The correct answer is: Protamine sulfate

A heparin overdose can be reversed with protamine sulfate. Vitamin K is used to reverse the effects of warfarin, which is a different type of blood thinner. Warfarin itself is not used to reverse a heparin overdose. Tranexamic acid does not reverse the effects of heparin and is used to control bleeding in other situations. Therefore, B is the most appropriate and specific choice for reversing a heparin overdose.