Unverified80% confidenceTradeoffTime unknown
面罩密封性权衡：全包式面罩密封好、吸氧效率高但压迫感强不适合清醒躁动患者；鼻吸管/开放式面罩舒适但氧气浪费多、有效浓度低，急救优先选带储氧袋的面罩
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80%
Confidence
Long-term
Relevance
-
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