A 74-year-old woman with nonvalvular atrial fibrillation presents with HR 92 bpm, BP 138/82 mmHg, and no signs of heart failure on examination. Recent INR monitoring shows variability (range 1.8–3.2). She strongly prefers to avoid routine anticoagulation monitoring. Labs reveal normal renal function (creatinine 0.9 mg/dL) and no active bleeding. She is started on an oral anticoagulant that directly inhibits factor Xa. Which of the following drugs was most likely prescribed?
- A)Dipyridamole
- B)Warfarin
- C)Heparin
- D)ApixabanGABARITO
- E)Aspirin
Explicação
Apixaban is a direct factor Xa inhibitor used for stroke prevention in nonvalvular atrial fibrillation and does not require routine INR monitoring. The stem specifically identifies an oral factor Xa inhibitor. This class provides anticoagulation by blocking co... Ver explicação completa e trilha adaptativa →