患者,男,50岁,半天来突然呕血4次,量约1200ml,黑便2次,量约600g,伴头晕心悸来院就诊。查体:血压76/65mmHg,心率110次/分,巩膜轻...

作者: rantiku 人气: - 评论: 0
问题 患者,男,50岁,半天来突然呕血4次,量约1200ml,黑便2次,量约600g,伴头晕心悸来院就诊。查体:血压76/65mmHg,心率110次/分,巩膜轻度黄染,腹部膨隆,肝未及,脾肋下3cm,移动性浊音(+)。 降低门静脉高压的首选药物
选项 A.静脉滴注垂体后叶素 B.静脉滴注西咪替丁 C.静脉滴注奥美拉唑 D.口服普萘洛尔 E.口服硝酸甘油
答案 A
解析 根据患者临床表现和体征,诊断为急性周围循环衰竭上消化道每日出血超过50ml就有黑便,超过500ml就有头昏乏力症状处理上应尽快补液输血垂体后叶素主要使内脏小动脉收缩,减少门脉血流进而降低门静脉压力

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