# A 65-year-old client on chronic warfarin for atrial fibrillation has just completed an elective abdominal hernia repair. Pre-operatively warfarin was held 5 days and the client was bridged with therapeutic enoxaparin, with the last dose given 24 hours pre-op. The surgical team confirms hemostasis and no active bleeding. Per a typical bridge protocol, when does the nurse anticipate the orders to resume the bridge anticoagulation? > source: MyMerci (mymerci.kr) > url: https://mymerci.kr/pages/nclex_q.php?qn_id=375006&lang=en > language: en > subject: Medical Emergencies > category: PA ## Question A 65-year-old client on chronic warfarin for atrial fibrillation has just completed an elective abdominal hernia repair. Pre-operatively warfarin was held 5 days and the client was bridged with therapeutic enoxaparin, with the last dose given 24 hours pre-op. The surgical team confirms hemostasis and no active bleeding. Per a typical bridge protocol, when does the nurse anticipate the orders to resume the bridge anticoagulation? ## Option 1. Delay restarting enoxaparin and warfarin until the surgical incision is well-healed and any wound drains are removed, typically about 7 days postoperatively, to minimize the risk of bleeding complications from the fresh surgical site. 2. Restart oral warfarin at the prior maintenance dose on the evening of surgery, without resuming enoxaparin, because the surgical wound is now closed and hemostasis is confirmed, so long-term anticoagulation with warfarin alone is sufficient for atrial fibrillation. 3. Resume therapeutic-dose enoxaparin and oral warfarin within the first hour after the patient arrives on the surgical floor, provided the first set of vital signs is stable, to quickly restore anticoagulation and prevent perioperative thromboembolism. 4. Resume therapeutic-dose enoxaparin approximately 24-72 hours post-operatively (depending on bleeding risk) once hemostasis is confirmed, typically restart oral warfarin the same day or next day, and continue overlap until INR is therapeutic. **✔ Correct answer** **Correct answer: 4** ## Explanation Post-operative resumption of bridge anticoagulation Resumption timing balances the risk of bleeding from the surgical site against the risk of thromboembolic events (stroke, DVT/PE). Standard approach (per CHEST and ACC guidelines): • Hemostasis confirmed by surgical team is the first prerequisite. • Low bleeding risk procedures: resume therapeutic LMWH ~24 hours post-op. • High bleeding risk procedures (major abdominal, neuraxial, intracranial, vascular): wait 48-72 hours; consider prophylactic-dose LMWH first, then advance to therapeutic dose. • Warfarin restart: typically the day of surgery or the next day (because warfarin takes 5-7 days to achieve therapeutic INR). • Overlap LMWH and warfarin until INR is therapeutic (≥2.0) for 24-48 hours, then discontinue LMWH. • Continue prophylactic VTE measures (mechanical compression, ambulation, hydration) until therapeutic anticoagulation resumes. • Adjust based on individual bleeding/clotting risk; monitor for hematoma, bleeding, thrombosis. Option 3 (1 hour) is too soon for therapeutic anticoagulation. Option 1 (7 days) is too long and increases thromboembolic risk. Option 2 (warfarin only) ignores the protective bridge needed during warfarin warm-up. ## In-depth explanation Clinical reasoning summary Post-operative resumption of bridge anticoagulation Resumption timing balances the risk of bleeding from the surgical site against the risk of thromboembolic events (stroke, DVT/PE). Standard approach (per CHEST and ACC guidelines): • Hemostasis confirmed by surgical team is the first prerequisite. • Low bleeding risk procedures: resume therapeutic LMWH ~24 hours post-op. • High bleeding risk procedures (major abdominal, neuraxial, intracranial, vascular): wait 48-72 hours; consider prophylactic-dose LMWH first, then advance to therapeutic dose. • Warfarin restart: typically the day of surgery or the next day (because warfarin takes 5-7 days to achieve therapeutic INR). • Overlap LMWH and warfarin until INR is therapeutic (≥2.0) for 24-48 hours, then discontinue LMWH. • Continue prophylactic VTE measures (mechanical compression, ambulation, hydration) until therapeutic anticoagulation resumes. • Adjust based on individual bleeding/clotting risk; monitor for hematoma, bleeding, thrombosis. Option 1 (1 hour) is too soon for therapeutic anticoagulation. Option 3 (7 days) is too long and increases thromboembolic risk. Option 4 (warfarin only) ignores the protective bridge needed during warfarin warm-up. ## Related questions - [A nurse is caring for an alert adult client with type 1 diabetes who reports tremors, swea…](https://mymerci.kr/pages/nclex_q.php?qn_id=360524&lang=en) - [A 68-year-old client with COPD is admitted with shortness of breath and SpO2 86% on room a…](https://mymerci.kr/pages/nclex_q.php?qn_id=362940&lang=en) - [A 58-year-old client arrives at the emergency department with crushing substernal chest pa…](https://mymerci.kr/pages/nclex_q.php?qn_id=362976&lang=en) - [A 72-year-old client is brought to the emergency department by family who report that the …](https://mymerci.kr/pages/nclex_q.php?qn_id=363003&lang=en) - [A 79-year-old client is admitted from a long-term care facility with diarrhea, decreased o…](https://mymerci.kr/pages/nclex_q.php?qn_id=363089&lang=en) - [A 76-year-old female with chronic heart failure and atrial fibrillation receives digoxin 0…](https://mymerci.kr/pages/nclex_q.php?qn_id=374883&lang=en) - [A 70-year-old client on long-term digoxin therapy reports new yellow-green halos around li…](https://mymerci.kr/pages/nclex_q.php?qn_id=374884&lang=en) - [A 58-year-old client with type 2 diabetes mellitus and migraine prophylaxis is taking prop…](https://mymerci.kr/pages/nclex_q.php?qn_id=374893&lang=en) ## Read in another language - [en](https://mymerci.kr/pages/nclex_q.php?qn_id=375006&lang=en) - [ko](https://mymerci.kr/pages/nclex_q.php?qn_id=375006&lang=ko) - [ja](https://mymerci.kr/pages/nclex_q.php?qn_id=375006&lang=ja) - [zh-TW](https://mymerci.kr/pages/nclex_q.php?qn_id=375006&lang=zh-tw) - [vi](https://mymerci.kr/pages/nclex_q.php?qn_id=375006&lang=vi) --- More free questions: [NCLEX-RN Practice](https://mymerci.kr/pages/nclex_bank.php?lang=en) _For study reference only. 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