Alternatively, detecting low levels of oxygen may indicate you need urgent medical care.So what is a pulse oximeter? So it's best to remove nail polish or acrylic nails on the fingers you'll use for testing.More controversial is the inaccuracy of some pulse oximeters in people with darker skin. Due to software problems, darker skin increases the risk some pulse oximeters over-estimate oxygen levels.It's an issue Australia's Therapeutic Goods Administration (TGA) is concerned about. In the meantime, manufacturers of pulse oximeters are addressing the software issues.If you can afford it, yes. So if you can get hold of a pulse oximeter, that would be best.

Source: Economic Times January 13, 2022 21:54 UTC