பல்ஸ் ஆக்ஸிமீட்டர் - தெரிந்து கொள்வோம் - Pulse Oximeter - How it works?

Pulse Oximeter - how pulse oximeter works?

Typically, more than 89 percent of your blood should be carrying oxygen. 

This is the oxygen saturation level needed to keep your cells — and your body — healthy. 

An oxygen saturation level of 95 percent is considered normal for most healthy individuals. 

Pulse oximetry is a noninvasive and painless test that measures your oxygen saturation level, 

or the oxygen levels in your blood.

A small clamp-like device is placed on a finger, earlobe, or toe. 

Small beams of light pass through the blood in the finger, measuring the amount of oxygen. 

It does this by measuring changes of light absorption in oxygenated or deoxygenated blood. 

This is a painless process.The pulse oximeter will thus be able to tell you your 

oxygen saturation levels along with your heart rate.