【单选题】【消耗次数：1】
门静脉血流受阻时，首先出现的临床表现是（ ）
①
肝功能改变
②
脾肿大
③
食管静脉曲张
④
腹水
⑤
血象改变
参考答案：
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相关题目
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关于腹壁静脉曲张的描述，错误的是
①
常见于门静脉高压致循环障碍
②
正常情况下，脐水平线以上的腹壁静脉血流方向为自下向上
③
正常情况下，脐水平线以下的腹壁静脉血流方向为自上向下
④
上腔静脉阻塞时，上腹壁的浅静脉曲张血流均转向下方
⑤
下腔静脉阻塞时，脐以下的腹壁浅静脉曲张血流方向转向下方
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