— 降低風險 · EASY · MCQ —
護理師準備對嬰兒進行肌肉注射，應選擇哪個部位？
A nurse is preparing to administer an intramuscular injection to an infant. Which site should the nurse choose?
- ARectus femoris muscle股直肌
- BVastus lateralis muscle✓ 正解外側股肌
- CDorsogluteal muscle背臀肌
- DDeltoid muscle三角肌
— Explanation · 中文詳解 —
嬰兒肌肉注射的選擇需考量肌肉發育程度與鄰近解剖構造的安全。嬰兒（尤其是 12 個月以下）的臀部肌肉尚未發展完全，若注射於背臀肌（Dorsogluteal muscle）容易誤傷坐骨神經。外側股肌（Vastus lateralis）位於大腿外側，該處肌肉厚實、血管神經分佈相對少，且無大型骨骼突起，是嬰兒肌肉注射的首選安全部位，能確保藥物有效吸收並降低神經損傷風險。
The vastus lateralis muscle is the preferred site for intramuscular injections in infants because it is well-developed and free of major nerves and blood vessels. Other sites like the dorsogluteal muscle are avoided due to the risk of sciatic nerve injury, while the deltoid is often too small for adequate volume absorption.
✦ 台美臨床差異
台美臨床實務一致，皆強烈建議嬰兒選擇外側股肌進行肌肉注射，並嚴格避開背臀肌。