热压灭菌法所用的蒸汽是A:流通蒸汽 B:饱和蒸汽 C:含湿蒸汽 D:过热蒸汽 E:115℃蒸汽

作者: tihaiku 人气: - 评论: 0

问题热压灭菌法所用的蒸汽是

选项 A:流通蒸汽 B:饱和蒸汽 C:含湿蒸汽 D:过热蒸汽 E:115℃蒸汽

答案 B

解析此题考查热压灭菌法中影响湿热灭菌的因素。湿热灭菌法所用蒸汽有饱和蒸汽、湿饱和蒸汽和过热蒸汽。饱和蒸汽热含量较高，热穿透力较大，灭菌效率高；湿饱和蒸汽因含有水分，热含量较低，热穿透力较差，灭菌效率较低；过热蒸汽温度高于饱和蒸汽，但穿透力差，灭菌效率低，且易引起药品的不稳定性。因此，热压灭菌应采用饱和蒸汽。故答案应选择B。

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热压灭菌法所用的蒸汽是A:流通蒸汽 B:饱和蒸汽 C:含湿蒸汽 D:过热蒸汽 E:115℃蒸汽

相关内容：法所,蒸汽,流通,饱和,含湿

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