Pulse oximeter is a non invasive device that helps to measure blood oxygen level. Blood oxygen level in our red blood cells must be maintained at certain level. A normal arterial blood gas (ABG) level for healthy lungs is between 80 and 100 mm Hg. Normal reading for blood oxygen level in pulse oximeter falls between 95 and 100 percent. If someone is infected with Coronavirus, their blood oxygen level will go down by increasing carbon dioxide. Pulse oximeters particularly measure the amount of light absorbed by blood and then indicates blood oxygen level.
Pulse oximeter thus are helpful as a tool to see how significantly our lungs have been affected by coronavirus.
If someone test positive for Covid-19 getting a pulse oximeter for home is a good idea as it monitors lungs capacity by monitoring oxygen level. In case, the oxygen level goes down, it acts a barometer to tell the person to visit hospital right away for further tests and admission if needed.
Image credit & Attribution: https://commons.wikimedia.org/wiki/File:OxyWatch_C20_Pulse_Oximeter.png
Thinkpaul / CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0)
Author: Sumana Rao | Posted on: July 31, 2020