试题与答案

患者,女,20岁,近2年间断出现发作性抽搐,未行治疗,今晨洗漱时突然出现意识丧失,全

题型:单项选择题 共用题干题

题目:

患者,女,20岁,近2年间断出现发作性抽搐,未行治疗,今晨洗漱时突然出现意识丧失,全身强直,呼吸暂停,继而四肢发作阵挛性抽搐,尿、便失禁,发作约1分钟后缓解。

该患者最可能的诊断是()。

A.低钙抽搐

B.癫痫大发作

C.癔症

D.低血糖状态

E.癫痫小发作

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析:当细胞受到刺激时,膜对Na+通透性增加,细胞外的Na+顺浓度梯度流入细胞内,膜内负电位从减小到消失,进而出现膜内正电位,此即动作电位的去极相。

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