Nowadays, we consider the Pulse Oximeter as the famous non-invasive technique to evaluate the oxygen saturation of hemoglobin in blood. The oxygen levels within the blood can modify quickly and with no continuous monitoring, these changes remain undetected until it’s too far gone. By monitoring the oxygen level right away, pulse oximeters will give early warning of hypoxemia, the insufficient oxygen in arterial blood, which otherwise is usually a fatal situation.
The standard principle behind the running of finger pulse oximeter, depends on the property of hemoglobin to absorb various wavelengths of lights as outlined by varied oxygenation level. The oximeters have got a light along with a light sensor, which can be normally clamped for some translucent part of the body, such as finger tip or earlobe, to the extent these particular sensor and source are typically in either sides of your body. The lighting source consists of two led lights that emit lights in beautiful red colors and infra red. Light rays go through our body and gets detected by the photo detector on the other end.
To determine the oxygen levels in your system, this instrument is usually clamped on the finger tip of your patient, and whenever clamped, the 2 main light sources emit red and infrared light on the body. These lights go through a person’s body and achieve photo detectors based upon some parameters. The levels of these rays that move through your body highly rely on the blood’s oxygenation level. Oxygenated blood is red colored plus it absorbs infrared radiation, whereas the de-oxyhemoglobin absorbs beautiful red colors more. The systolic pressure, cause an inrush of highly oxygenated hemoglobin to your tissues, absorbing more infrared light, which, decreases the variety of IR rays that reach the photo sensor. Concurrently, the red light is less affected, because high oxygenated blood is less responsive to the sore point.