— 降低風險 · EASY · MCQ —
護理師準備為一名 6 個月大的嬰兒進行肌肉注射。下列哪個部位最合適？
A nurse is preparing to administer an intramuscular injection to a 6-month-old infant. Which site is the most appropriate?
- ADeltoid muscle三角肌
- BRectus femoris muscle股直肌
- CVastus lateralis muscle✓ 正解股外側肌
- DDorsogluteal muscle臀大肌
— Explanation · 中文詳解 —
針對嬰幼兒（未滿 1 歲或剛開始走路），股外側肌（Vastus lateralis）是肌肉注射的首選部位。此處肌肉發育最完整，且遠離主要的血管與神經。臀部肌肉（Dorsogluteal）因坐骨神經損傷風險不建議使用；三角肌（Deltoid）在嬰兒期尚未發育成熟。
The vastus lateralis is the preferred site for intramuscular injections in infants because it is the largest and most well-developed muscle, minimizing the risk of nerve or vascular injury. Other sites like the deltoid are not sufficiently developed, and the dorsogluteal site poses a risk of sciatic nerve damage.
✦ 台美臨床差異
台美兒科護理指引一致，皆嚴格遵守股外側肌注射規範以維護病安。