It shows that successfulness in puncturing can be more easily achived by applying tourniquets in several times and releasing the tourniquets after each cannulation when a less venosity appears.
说
利用套管针在静
不佳血管穿刺时，行分次扎止血带和
管后松止血带可
提高穿刺成功率。
性，翅性；静血过多It shows that successfulness in puncturing can be more easily achived by applying tourniquets in several times and releasing the tourniquets after each cannulation when a less venosity appears.
说利用套管针在静不佳血管穿刺时，行分次扎止血带和管后松止血带可提高穿刺成功率。
：
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