RN VATI Pharmacology S 2019 | Nurselytic

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RN VATI Pharmacology S 2019 Questions

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Question 1 of 5

A nurse is caring for a client who is receiving heparin by continuous IV infusion for treatment of venous thrombosis. Which of the following laboratory values should the nurse monitor for in order to titrate the heparin dose?

Correct Answer: B

Rationale: The correct answer is B: aPTT. Activated Partial Thromboplastin Time (aPTT) is a lab value used to monitor heparin therapy. Heparin works by inhibiting clot formation, so monitoring aPTT ensures the blood is at the appropriate level of anticoagulation. If aPTT is too low, there is a risk of clot formation, and if it is too high, there is a risk of bleeding. Platelet function assay (
A) measures platelet function, not heparin effectiveness. INR (
C) is used to monitor warfarin therapy, not heparin. Amylase (
D) is a pancreatic enzyme, not relevant to heparin monitoring. Monitoring aPTT helps maintain the therapeutic range for heparin dosing.

Question 2 of 5

Correct Answer:

Rationale:

Question 3 of 5

Correct Answer:

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Question 4 of 5

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Question 5 of 5

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