A client receiving WARFARIN is admitted with a major bleed. Which medication will the

nurse expect to be ordered immediately?

A. Vitamin B12

B. Protamine sulfate

C. Vitamin K (phytonadione)

D. Fresh frozen plasma (FFP) only

Answer: C. Vitamin K (phytonadione)

Rationale: Vitamin K reverses warfarin’s effects. In major bleeding, IV vitamin K plus

FFP or prothrombin complex concentrate may be used.

2. A patient on insulin glargine (Lantus) asks why they take it at night. The nurse

ex...
verified BARKLEY PMHNP 2026 Ultimate Exam Review: 150 High-Yield 
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