【多选题】【消耗次数：1】
30. 下列哪些为包衣的目的
①
使应用方便，剂量准确
②
防止药物的配伍变化
③
掩盖苦味或不良气味
④
控制药物在胃肠道中的释放速度
⑤
增加药物的稳定性
参考答案：
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关于围术期胃肠道药物的使用和管理，不正确的是（ ）
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围术期使用 H2 受体阻断剂或者质子泵抑制剂（PPI）抑制胃酸生成，可减少黏膜损伤的发生
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