Difficulty: Medium
Average Score: 89%
Simulated
A nurse is caring for a client who has a pulmonary embolism and is receiving therapy with unfractionated heparin. Which of the following laboratory results indicates that the therapy is effective?
Correct answer
B
Rationale
An aPTT of 75 seconds indicates therapeutic anticoagulation with heparin, targeting the intrinsic clotting pathway.