The nurse plans to monitor the results of which of the following laboratory studies to monitor the therapeutic effects of heparin?

Question

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The activated partial thromboplastin time (aPTT) is the laboratory study used to monitor the therapeutic effects of heparin. It measures the time it takes for a clot to form in a blood sample when exposed to a chemical substance that triggers clotting. The goal of heparin therapy is to prolong the aPTT to a therapeutic range, indicating that the medication is sufficiently preventing clot formation.

The Nurse Plans to Monitor the Results of Which of the Following