题目内容 (请给出正确答案)
提问人:网友l******8 发布时间:2022年4月5日 20:20
[单项选择题]

使用氧气时的正确的操作方法是:()

A.先打开流量调节阀,然后将鼻导管末端轻轻插入鼻腔,最后调节氧流量

B.先打开流量调节阀调节至所需氧流量,然后将鼻导管末端轻轻插入鼻腔

C.先打开流量调节阀检查设备是否正常,然后轻轻将鼻导管末端轻轻插入鼻腔

D.先将鼻导管轻轻插入鼻腔,然后打开流量调节阀调节至所需氧流量

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