— 安全與感染控制 · MEDIUM · MCQ —
護理師準備為成年病人進行 3 mL 的肌肉注射，下列哪個部位最適合？
A nurse is preparing to administer an intramuscular injection to an adult client. Which site is most appropriate for a 3 mL injection?
- AVentrogluteal✓ 正解腹臀部
- BRectus femoris股直肌
- CDorsogluteal臀背部
- DDeltoid三角肌
— Explanation · 中文詳解 —
肌肉注射部位的選擇需考慮肌肉厚度、血管與神經分佈。腹臀部（Ventrogluteal）由臀中肌與臀小肌組成，肌肉厚實且遠離大血管與坐骨神經，是目前醫學界公認最安全且適合施打大體積藥物（高達 3-5 mL）的部位。三角肌僅適合小體積（<1 mL）；臀背部（Dorsogluteal）因鄰近坐骨神經，風險相對較高，已逐漸不建議作為常規部位。
The ventrogluteal site is the most appropriate for a 3 mL intramuscular injection because it has a thick muscle mass and is distant from major nerves and blood vessels. In contrast, the deltoid is too small for this volume, and the dorsogluteal site poses a higher risk of sciatic nerve injury.