問題詳情

43.脊髓橫斷時會立即呈現下列何種症狀?
(A)脊髓休克(spinal shock)
(B)肌肉痙攣(muscle spasticity)
(C)過度反射(hyper-reflexia)
(D)腦死(brain death)

參考答案

答案:A
難度:適中0.5
統計:A(19),B(7),C(8),D(4),E(0)

用户評論

Chris】評論

Spinal shock was a loss of sensation accompanied by motor paralysis with initial loss but gradual recovery of reflexes, following a spinal cord injury (SCI) – most often a complete transection.Phase 1 is characterized by a complete loss—or weakening—of all reflexes below the SCI. This phase lasts for a day. The neurons involved in various reflex arcs normally receive a basal level of excitatory stimulation from the brain. After an SCI, these cells lose this input, and the neurons involved become hyperpolarized and therefore less responsive to stimuli.Phase 2 occurs over the n...

Liuuuuuuu】評論

脊髓損傷患者,常見的症狀與徵象主要為脊髓休克:即受傷部位以下立即喪失所有的反射、運動、感覺及自主神經功能,造成肢體麻痺、呼吸困難、尿液滯留、腸蠕動變慢等臨床表徵,時間可能持續數天至數星期。其次為神經性休克:主要是因交感神經衝動無法傳出,使周邊血管擴張、心輸出量減少,而呈現神經休克狀態,特別是第6胸椎以上受傷者,患者容易出現低血壓、心跳過慢、中心靜脈壓下降、甚至於體溫過低情形。