Updated: May 13, 2021 5:02 PM IST
COVID-19 second wave has hit India hard and killed lakhs till date. Doctors say, one of the major reasons that most deaths happen among people affected with coronavirus is due to the delay in monitoring of the blood oxygen level and eventually late hospitalisation. Rapid dip in SpO2 level in a human body is one of the key symptoms seen in a person affected with COVID-19 and that, doctors suggest, should be checked at a much early stage of the disease. Also Read - Best 5 pulse oximeters under Rs 1,500 to buy in India to measure Blood Oxygen Level