Health: Santamedical SM-165 Fingertip Pulse Oximeter
I got to try the Santa
Medical Finger Pulse Oximeter and I’m fascinated in how easy is to measure your
pulse and the oxygen saturation. This device is small, convenient and easy to
use. The results are very accurate if you follow the instructions correctly. It
includes the batteries and a case to protect it. Easy to carry in a purse or
pocket. This is a great device to have at home for any emergency.
I suffer from high
blood pressure and panic attacks and this is a great way to know if you are
having a serious problem. Such a little thing can save your life, High blood
pressure is very dangerous since you can feel normal and be in a critical
condition that can lead to a heart attack.
An approximate blood
oxygen level can be estimated using a pulse oximeter — a small device that
clips on your finger. Though the pulse oximeter actually measures the
saturation of oxygen in your blood, the results are often used as an estimate
of blood oxygen levels. Normal pulse oximeter readings range from 95 to 100
percent, under most circumstances. Values under 90 percent are considered low.
(http://www.mayoclinic.org/symptoms/hypoxemia/basics/definition/sym-20050930)
A pulse oximeter works
by passing a beam of red and infrared light through a pulsating capillary bed.
The ratio of red to infrared blood light transmitted gives a measure of the
oxygen saturation of the blood. The oximeter works on the principle that the oxygenated
blood is a brighter color of red than the deoxygenated blood, which is more
blue-purple. First, the oximeter measures the sum of the intensity of both
shades of red, representing the fractions of the blood with and without oxygen.
The oximeter detects the pulse, and then subtracts the intensity of color
detected when the pulse is absent. The remaining intensity of color represents
only the oxygenated red blood. This is displayed on the electronic screen as a
percentage of oxygen saturation in the blood.
Note: I received this product free or highly discounted for review purposes and an un-biased opinion.
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