護理師正在為一位病人進行皮下注射依諾肝素（Enoxaparin）。下列哪項操作是正確的？
A nurse is administering a subcutaneous injection of enoxaparin to a client. Which action is correct?
- AInject into the abdominal fat at a 90-degree angle✓ 正解以90度角注入腹部脂肪
- BAspirate before injecting the medication注射前進行回抽
- CExpel the air bubble from the prefilled syringe排出預充式注射器中的氣泡
- DMassage the site vigorously after injection注射後用力按摩注射部位
Enoxaparin 是低分子量肝素，注射時應採取腹部皮下注射，建議角度為 90 度以確保藥物進入皮下脂肪層。操作時不應擠出預充式針筒中的氣泡（該氣泡設計用於封閉藥液），不需回抽（增加皮下血腫風險），且注射後絕對不可按摩注射部位，以免造成出血或皮膚損傷。
Enoxaparin is a low-molecular-weight heparin and should be administered subcutaneously into the abdomen, recommended at a 90-degree angle to ensure delivery into the subcutaneous adipose layer. The air bubble in the prefilled syringe should not be expelled (it is designed to seal in the medication), aspiration should not be performed (which increases the risk of subcutaneous hematoma), and the site must never be massaged after the injection in order to avoid bleeding or skin injury.
台美執業標準一致，針對抗凝血劑之注射技術（不按摩、不回抽）皆為重要護理職能。