pulse oximeter adult hand white background measuring blood oxygen level tests saturation |
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| navigate by keyword : blood blue care check clip coronavirus covid device digital electronics examine finger hand health heart illness indoors level mature measurement modern monitor normal oximeter oximetry oxygen oxymeter patient people pneumonia portable pulse rate sarscov saturation sensor symptom technology virus white woman |
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| Pulse Oximeter on adult hand on white background, measuring blood oxygen level. Portable Oximeter Fingertip tests oxygen saturation. Low oxygen levels show injury of lungs and pneumonia by virus |
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