ATI Pharmacology Exam Final | Nurselytic

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ATI Pharmacology Exam Final Questions

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Question 1 of 5

A nurse is caring for a client who is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?

Correct Answer: C

Rationale: The correct answer is C: Prothrombin time (PT). Warfarin works by inhibiting vitamin K-dependent clotting factors, including factors II, VII, IX, and X, which are assessed through PT. Monitoring PT helps ensure the therapeutic range of anticoagulation to prevent clot formation without excessive bleeding. APTT (choice
A) is used to monitor heparin therapy, not warfarin. Bleeding time (choice
B) assesses platelet function, not the effect of warfarin on clotting factors. Hemoglobin (choice
D) measures the oxygen-carrying capacity of red blood cells, not related to warfarin therapy.

Question 2 of 5

Correct Answer:

Rationale:

Question 3 of 5

Correct Answer:

Rationale:

Question 4 of 5

Correct Answer:

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Question 5 of 5

Correct Answer:

Rationale:

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