What is Pulse oximetry?
Pulse oximetry is a noninvasive, painless, small, lightweight test device attached to your body that measures your oxygen saturation level, or the oxygen levels in your blood. It can promptly detect even the smallest changes in how efficiently oxygen is being carried to the extremities furthest from the heart.
What is a normal reading on a pulse oximeter?
Normal arterial oxygen is approximately 75 to 100 millimeters of mercury (mm Hg).
What are the 2 readings on a pulse oximeter?
The 2 readings on a pulse oximeter are:
How does this work?
During a pulse oximetry reading, a small clamp-like device is placed on a finger. A small beam of light passes 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.
How do pulse oximeter help during Covid-19 and do I need one?
When it is hard to asses why there is difficulty in breathing, this device can help early detection of COVID-19 symptoms (if any). It can identify any irregularities in the oxygen flow. It is best to always keep one at home to check whenever required.
NOTE: Low oxygen level Does Not always mean it is due to COVID-19. Consult your doctor at the earliest.
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