護理師正為病人進行皮下注射 Enoxaparin。哪項步驟呈現了正確的技術？
A nurse is administering a dose of subcutaneous enoxaparin to a client. Which nursing action demonstrates correct technique?
- AMassage the injection site vigorously after withdrawal拔針後用力按摩注射部位
- BExpel the air bubble in the pre-filled syringe before injection注射前排出預充式針筒內的氣泡
- CPinch the skin fold and inject at a 90-degree angle✓ 正解捏起皮膚摺皺並以90度角注射
- DInject the medication into the client's deltoid muscle將藥物注射至病人的三角肌內
Enoxaparin屬於低分子量肝素（LMWH），臨床用於預防血栓。給藥技術需嚴格遵守預防局部瘀青與組織損傷的原則。正確操作應選擇腹部皮下組織，捏起皮膚皺褶後以90度垂直進針，確保藥物進入皮下脂肪層而非肌肉層。預充式針筒內的空氣泡設計是為了確保藥物全部注入，不應排除，以減少針尖處藥物殘留導致的皮膚刺激。
Enoxaparin is a low-molecular-weight heparin (LMWH) used clinically to prevent thrombosis. The injection technique must strictly follow the principles for preventing local bruising and tissue injury. The correct procedure is to choose the subcutaneous tissue of the abdomen, pinch a skin fold, and insert the needle at a 90-degree angle to ensure that the drug is delivered into the subcutaneous fat rather than into muscle. The air bubble in the prefilled syringe is intentionally included to ensure that the entire dose is injected and should not be expelled, in order to reduce skin irritation from drug residue at the needle tip.