Page 9 - 北京京煤集团总医院第十届·2022学术年会论文集

北京京煤集团总医院 第十届·2022 学术年会论文集

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Fig 1 mode of nasal inhalation and exhalation

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Fig 2 mode of nasal inhalation and oral exhalation

1.3 Observation indicators

Monitor and record the mean arterial pressure (MAP), heart rate (HR) and blood oxygen saturation

(SpO2) changes of the two groups of subjects before the start of the examination, during the

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