— 降低風險 · EASY · MCQ —
護理師準備為嬰兒進行肌肉注射。哪個部位最為合適？
A nurse is preparing to administer an intramuscular injection to an infant. Which site is most appropriate?
- ADeltoid muscle三角肌
- BDorsogluteal muscle臀大肌
- CVastus lateralis muscle✓ 正解股外側肌
- DRectus femoris muscle股直肌
— Explanation · 中文詳解 —
為嬰兒執行肌肉注射（intramuscular injection）時，選擇正確的注射部位至關重要，以確保藥物能被有效吸收，並避免損傷重要的神經血管結構。嬰兒的臀部肌肉（dorsogluteal muscle）發育尚未成熟，且靠近坐骨神經，注射該部位有較高的風險造成神經損傷或影響藥物吸收。股外側肌（vastus lateralis muscle）位於大腿外側，是嬰兒和幼童肌肉注射的首選部位，因為該肌肉體積較大、發育良好，且遠離主要的神經和血管。 臨床思路：此題考量病人的安全（safety）與醫療處置的執行。針對特定年齡層（嬰兒）選擇最合適的注射部位，涉及解剖學知識與避免併發症的考量。安全與有效性是選擇注射部位的首要原則。
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, such as the dorsogluteal muscle, are contraindicated due to the risk of sciatic nerve injury and insufficient muscle mass in young children.