spo2 < 92%, hypotension (systolic blood pressure < 90 mmhg or diastolic blood pressure < 60mmhg) having chronic respiratory disease (copd, asthma, etc.) having a stroke or neurodegenerative disease. not being willing to participate in the study

spo2 < 92%, hypotension (systolic blood pressure < 90 mmhg or diastolic blood pressure < 60mmhg) having chronic respiratory disease (copd, asthma, etc.) having a stroke or neurodegenerative disease. not being willing to participate in the study