T6 脊髓損傷病人出現哪種臨床發現代表發生了自主神經反射異常？
Which clinical finding is indicative of autonomic dysreflexia in a client with a spinal cord injury at T6?
- ASevere headache and hypertension✓ 正解劇烈頭痛與高血壓。
- BHypotension and tachycardia低血壓與心搏過速。
- CFlushed skin below the level of injury損傷平面以下皮膚潮紅。
- DPale skin above the level of injury損傷平面以上皮膚蒼白。
自主神經反射異常 (autonomic dysreflexia) 是一種危及生命的緊急情況，常見於脊髓損傷 (spinal cord injury) 位於 T6 或更高節段的病人。其病理機轉是損傷水平以下的有害刺激（如膀胱過度膨脹、直腸充盈、壓瘡等）引發了交感神經系統的過度反應，但由於脊髓損傷，這種反應無法被大腦有效抑制，導致損傷水平以下血管收縮和血壓急劇升高，而損傷水平以上則出現代償性迷走神經活動增強。護理師必須能迅速識別這些症狀，並立即介入以預防腦出血或癲癇等嚴重併發症。
Autonomic dysreflexia is a life-threatening emergency commonly seen in patients with spinal cord injuries at the T6 level or above. The pathophysiology involves noxious stimuli below the level of injury (such as bladder over-distention, bowel impaction, pressure ulcers) triggering an exaggerated sympathetic nervous system response. Because of the spinal cord injury, this response cannot be effectively inhibited by the brain, leading to vasoconstriction and a sharp rise in blood pressure below the level of injury, with compensatory parasympathetic (vagal) overactivity above the level of injury. Nurses must rapidly recognize these symptoms and intervene immediately to prevent serious complications such as intracerebral hemorrhage or seizures.
自主神經反射異常的護理處置原則在台灣和美國是高度一致的，都強調快速識別誘發因素並立即解除刺激，例如排空膀胱、檢查直腸有無糞便嵌塞、解除衣物束縛等。在美國，專科護理師 (Nurse Practitioner) 或進階執業護理師 (Advanced Practice Registered Nurse, APRN) 可能在醫師醫囑下，在緊急情況下給予降壓藥物，而台灣的護理師則需要醫師開立醫囑才能執行相關藥物處置，但緊急情況下的初步處理流程是相同的。