A patient who has been treated with warfarin (Coumadin) after cardiac surgery is found to have an INR of 9.0 . Which medication will be administered to assist in the development of clotting factors?
A) Vitamin K
B) Vitamin E
C) Protamine sulfate
D) Acetylsalicylic acid (Aspirin)
A
Feedback:
Vitamin K is the antidote for warfarin overdosage. In this case, the patient may be at the therapeutic level to control thrombus formation, but, due to the injury, it is important to control bleeding. Vitamin E is not used as an antidote for warfarin overdosage. Protamine sulfate is used as an antidote to heparin or low molecular-weight heparin. Acetylsalicylic acid (Aspirin) is used to decrease coagulation as a preventive measure for myocardial infarction.
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