Problems with evaluating readings of pulse oximeters used at home during the ongoing COVID-19 pandemic

The author presents the problems related to pulse oximetry, taking into account both current state-of-the-art as well her own long-standing experience in this field. COVID-19 pandemic continues and has raised interest home application of oximeters due their potential benefit, which may be warning a drop blood oxygenation lower respiratory capacity. However, it should emphasized that these devices have limitations, physiological technical nature, some reliability scope measurements still remain unresolved. Phenomena limit processing quantity sensed, i.e., oxygen saturation SaO2%, are presented. Specific groups affecting factors distinguished an approach contribution measurement uncertainty components. Full Text: PDF ReferencesJ.W. Severinghaus, "Crediting six discoverers oxygen", Adv. Exp. Med. Biol. 812 (2014). CrossRef F.A. Duck, "Physical properties tissue: comprehensive reference book" (San Diego, Academia Press 1990). J.G. Webster, "Design oximeters" (Bristol, IOP Publishing Ltd 1997). A.A. Alian K.H Shelley, "Photoplethysmography", Anesthesiology 28, 4 N. Moukaddam A. Shah, "Psychiatrists beware! impact pandemics on mental health", Psychiatric Times 37, 3 (2020). S.S. Morse, Proc Nat. Acad Sci 104, 18 (2007). W.A. Schrading, B. McCafferty, J. Grove, D.B. Page, "Portable, consumer?grade accurate for medical use: Implications use COVID?19 other resource?limited environments", JACP Open, 1 K.E.J. Philip, Bennet, S. Fuller, et al., "Working accuracy oximetry patients stepping down from intensive care: clinical evaluation ", BMJ Open Resp. Res. 7 Seifi, Khatony, G. Moradi, Abdi, F. Najafi, "Accuracy detection admitted care unit heart surgery: comparison finger, toe, forehead earlobe probes", BMC Nursing 17, 15 (2018). Cysewska-Sobusiak, "A modern determination expanded noninvasive oximetry", Measurement 25 (1999). "The importance combined teaching research work education biomedical engineering", Biocybernetics Biomedical Engineering 22, (2002). "Noninvasive optoelectronic monitoring living tissues vitality", 3rd Int. Workshop Robot Motion Control, Nov. 2002 "Examples acquisition biooptical signals", Phot. Lett. Poland 11, 2 (2019).