• Sadhna Sapra
    0
    A pulse oximeter is a small , lightweight device used to measure the amount of oxygen carried in the body . This non - invasive tool attaches painlessly to your fingertip , sending two wavelengths of light through your finger to measure your pulse rate & how much oxygen is in your system .
    Normal pulse oximeter readings range from 95 to 100%. Values under 90% are considered low . Thus , pulse oximeter is used for detecting hypoxemia or low blood oxygen levels which is one of the early signs of a Covid 19 infection .
  • Bobert
    330
    Never heard of them, googling they range from £3-130 ... Think the loss of breath, cough, fever..would indicate concern ...
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