A patient undergoing a carotid endarterectomy is heparinized intraoperatively. At the end of the procedure, the surgeon elects to reverse anticoagulation. Which agent is administered, and at what ratio to heparin?
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A
Vitamin K at 1 mg per 100 units of heparin
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B
Protamine sulfate at 1 mg per 100 units of heparin
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C
Fresh frozen plasma at 1 unit per 1,000 units of heparin
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D
Tranexamic acid at 1 g regardless of heparin dose