FINGER TIP PULSE OXIMETER
The Fingertip Pulse oximeter is a noninvasive and painless test that accurately measures oxygen saturation and pulse rate at the same time.
The right thumb and right middle finger are statistically the best fingers to use for a pulse oximeter.
HOW ACCURATE IS A FINGER TIP OXIMETER?
Pulse oximeter accuracy is highest at saturations of 90-100%, intermediate at 80-90%, and lowest below 80% according to the The U.S. Food and Drug Administration (FDA).
A healthy blood level of “oxygen saturation” normally measures 95-100% on a pulse oximeter.