NCLEX Questions Respiratory Related

Review NCLEX Questions Respiratory related questions and content

The nurse is preparing to administer warfarin (Coumadin), an oral anticoagulant, to a client diagnosed with a pulmonary embolus. Which data would cause the nurse to question administering the medication?

  • A. The client's partial thromboplastin time (PTT) is 38.
  • B. The client's international normalized ratio (INR) is 5.
  • C. The client's prothrombin time (PT) is 22.
  • D. The client's erythrocyte sedimentation rate (ESR) is 10.
Correct Answer: B

Rationale: An INR of 5 (B) is above the therapeutic range (2–3 for pulmonary embolus), indicating excessive anticoagulation and bleeding risk, so warfarin should be questioned. PTT (A) is for heparin, not warfarin. PT (C) alone is not standardized. ESR (D) is irrelevant to anticoagulation.