问题:
[单选] 患者男.30岁。因甲状腺功能亢进行甲状腺大部切除术。术后护士观察到患者音调低钝,但饮水时并不出现误咽、呛咳,怀疑术中可能损伤了患者的A . 喉上神经内侧支
B . 喉上神经外侧支
C . 单侧喉返神经
D . 经喉头水肿
E . 声带损伤
参考解析:
喉上神经外侧支损伤会使环甲肌瘫痪,引起声带松弛,音调降低,内侧支损伤则是喉部黏膜感觉丧失,容易出现误咽,呛咳。
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