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A patient is receiving a continuous IV infusion of heparin for the treatment of a pulmonary embolism. Which of the following blood tests should be monitored closely?

Explanation

• Activated partial thromboplastin time (aPTT) measures the efficacy of the intrinsic coagulation pathway and common coagulation pathway. This measures the effect of heparin on clotting.


• Incorrect: PT and INR are monitored with the use of coumadin (Warfarin).

• Incorrect: PPT does not exist.

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