A 75-year-old man known to have hypertension and has metallic mitral valve on warfarin for right hemicolectomy. Which of the following is appropriate preoperative preparation with his warfarin?
سؤال مجاني 8 من 10 اليوم · اشترك وكمّل بدون حد
اعرض الإجابة
الإجابة والشرح
ادخل لحسابك عشان نحفظ إجاباتك ونوريك أخطاءك.
الإجابة: D. warfarin should be stopped for 5 days, and heparin should be started for bridging.
Before a major operation such as right hemicolectomy, warfarin is held until the INR normalizes (usually 3-5 days), and in a high-thrombotic-risk patient like one with a metallic mitral valve, anticoagulation is maintained with heparin bridging. Simply stopping warfarin (A) leaves the valve unprotected; continuing it (C) or aiming for INR 1.5 (B) risks bleeding; clopidogrel (E) does not protect a mechanical valve.
- المصدر
- Surgical Principles 💉.pdf · p. 5
- المحاضرة
- Other subjects · General Surgery · Module D
- ظهر في
- Surgery QB (Module D) p. 226 Q50