ATI RN Custom Exams Set 1 Related

Review ATI RN Custom Exams Set 1 related questions and content

Warfarin (Coumadin) is an anticoagulant and interferes with the action of:

  • A. Platelets
  • B. Vitamin K
  • C. Calcium
  • D. Vitamin B12
Correct Answer: B

Rationale: The correct answer is B: Vitamin K. Warfarin inhibits the action of vitamin K, which is essential for blood clotting. By interfering with the production of certain clotting factors, warfarin helps prevent blood clots. Choices A, C, and D are incorrect because warfarin primarily affects the vitamin K-dependent clotting factors and not platelets, calcium, or vitamin B12.