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階段 4 — 擬定解決方案。個案在首次靜脈輸液大量灌注後出現疑似敗血症且持續灌注不足：MAP 58、皮膚斑駁和急性注意力不集中。疑似泌尿道感染源，且培養結果待確認。現在有哪些介入措施是適當的？請選擇所有適用項目。

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1 Administer empiric IV antimicrobials immediately after blood cultures, or sooner if obtaining cultures would cause an avoidable delay 在血液培養後立即給予經驗性靜脈注射抗菌藥物，若取得培養會造成可避免的延遲，則應更早給予 2 Trend lactate and use repeated perfusion and dynamic fluid-responsiveness assessments to guide ongoing resuscitation 監測乳酸變化趨勢，並使用重複的灌注與動態輸液反應性評估來指導持續的復甦 3 Continue individualized balanced-crystalloid resuscitation and start prescribed norepinephrine promptly for persistent hypotension while fluids continue 繼續個別化的平衡晶體溶液復甦，並在持續輸液的同時，針對持續性低血壓迅速開始給予醫囑開立的 norepinephrine 4 Obtain two sets of blood cultures as soon as possible and ideally before the first antimicrobial dose 儘快取得兩套血液培養，理想情況下應在首次給予抗菌藥物劑量之前 5 Hold antimicrobials, fluids, vasopressors, and catheter management while awaiting definitive urine culture and urinary-tract imaging results despite ongoing hypoperfusion 儘管持續灌注不足，仍暫緩抗菌藥物、輸液、升壓劑和導管處置，以等待確切的尿液培養和泌尿道影像學檢查結果 6 Reassess Foley necessity; if still needed, replace it aseptically and culture from the fresh sampling port; if removed, obtain a voided specimen; never use the drainage bag 重新評估 Foley 導尿管的必要性；若仍有需要，以無菌技術更換並從新的採樣口進行培養；若已移除，則取得解尿檢體；絕不可使用蓄尿袋

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