護理師指導病人自行注射胰島素，應包含哪些內容？（選所有適合的）
A nurse is teaching a client about self-administration of insulin. Which of the following should be included in the teaching? (Select all that apply.)
- ARotate injection sites to prevent lipodystrophy✓ 正解輪替注射部位以預防脂肪營養不良
- BInject insulin into the same site to ensure consistent absorption將胰島素注射至同一部位以確保吸收一致
- CClean the skin with an alcohol swab before injection✓ 正解注射前以酒精棉片清潔皮膚
- DDiscard used needles in a puncture-resistant container✓ 正解將使用過的針頭丟入防刺容器
- EMassage the site vigorously after injection注射後用力按摩注射部位
核心概念：皮下胰島素（Subcutaneous Insulin）注射的自我照護教學。 為何正確答案對： A. 輪替注射部位（Rotate injection sites）是預防皮下脂肪萎縮（Lipodystrophy）或增生（Lipohypertrophy）的關鍵。這些脂肪組織異常會影響胰島素的吸收，導致血糖控制不穩定。 C. 注射前使用酒精棉片消毒皮膚（Clean the skin with an alcohol swab）並讓其自然風乾，是標準的無菌操作，有助於預防注射部位的局部感染。 D. 使用過的針頭（Used needles）應立即丟棄於專用的防刺穿容器（Puncture-resistant container）中，以防止針扎意外傷害（Needlestick injury）給自己或他人。 為何其他選項錯： B. 為了確保胰島素吸收的一致性，不應將胰島素注射到完全相同的部位，而是應在同一解剖區域內輪替，例如腹部輪替不同位置，或手臂、大腿輪替。 E. 注射後劇烈按摩注射部位（Massage the site vigorously after injection）會加速胰島素吸收，可能導致血糖驟降（Hypoglycemia），尤其是在注射速效胰島素時。一般建議注射後輕輕按壓即可，無需按摩。 臨床思路（Health Promotion/Safety）：病人自我注射胰島素時，需確保技術正確以達到最佳療效並避免併發症。教學內容應涵蓋預防感染、預防組織損傷、安全處理針具，以及確保藥物吸收穩定性。
Core concept: self-care teaching for subcutaneous insulin injection. Why the correct answers are right: A. Rotating injection sites is the key to preventing subcutaneous lipoatrophy or lipohypertrophy. Such abnormal fatty tissue can interfere with insulin absorption and lead to unstable glycemic control. C. Cleaning the skin with an alcohol swab before injection and allowing it to dry naturally is standard aseptic technique and helps prevent local infection at the injection site. D. Used needles should be discarded immediately into a dedicated puncture-resistant container to prevent needlestick injury to the patient or others. Why the other options are wrong: B. To keep insulin absorption consistent, insulin should not be injected into exactly the same spot; instead, sites should be rotated within the same anatomic region, such as different points on the abdomen, or alternating arms and thighs. E. Vigorously massaging the site after injection accelerates insulin absorption and may cause a sudden fall in blood glucose (hypoglycemia), particularly with rapid-acting insulin. Gentle pressure after injection is generally recommended; massage is unnecessary. Clinical reasoning (health promotion/safety): when patients inject insulin themselves, correct technique is necessary to achieve maximum therapeutic effect and avoid complications. Teaching should cover infection prevention, tissue injury prevention, safe sharps disposal, and ensuring consistent drug absorption.