【单选题】【消耗次数：1】
肝素最常见的不良反应是
①
变态反应
②
消化性溃疡
③
血压升高
④
自发性骨折
⑤
自发性出血
参考答案：
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相关题目
【单选题】
血小板减少的患者，皮肤粘膜常自发性出现出血点和紫癜，主要是由于
①
不易形成止血栓
②
血管不易收缩
③
不能维持血管内皮的完整性
④
血凝块回缩障碍
⑤
血液凝固障碍
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