A patient who is taking warfarin has an international normalized ratio (INR)of 5.5.The nurse will anticipate giving

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Vitamin K is an antagonist against warfarin,an oral anticoagulant.Patients with an INR of 5.5 should be given a low dose of oral vitamin K.Too much vitamin K may reduce the effectiveness of warfarin for up to 2 weeks.Fresh frozen plasma and intravenous iron are given for anemia caused by blood loss.Protamine sulfate is given for heparin overdose.

A Patient Who Is Taking Warfarin Has an International Normalized