In hospital premises It may be ABG Analysis (arterial blood gas). Blood wil take from the superficial artery and does the test. Another way is by SPo2 sensor machines, that is saturation point of oxygen sensor machines.
Pulse Oximeter
It is a device for measuring the oxygen saturation of arterial blood.
I'm assuming you're referring to saturation of oxygen in the blood. If the temperature is increased, oxyhemoglobin curve is shifted to the right, meaning hemoglobin realeses oxygen more readily, thus increasing blood oxygen saturation.
Hypoxia
90
if the oxygen saturation is 50% it means the total hemoglobin content of blood is half saturated with oxygen. in this condition the oxygen delivery to the tissues is the maximum.
Oxygen saturation or dissolved oxygen (DO) is a relative measure of the amount of oxygen that is dissolved or carried in a given medium. It can be measured with a dissolved oxygen probe such as an oxygen sensor or an optode in liquid media, usually water. Blood oxygen saturation level refers to the percentage of a person's red blood cells that are loaded or filled with oxygen. Oxygen is carried by the red blood cells to organs, such as the brain and the heart. If the blood oxygen level is too low, not enough oxygen is carried to the organs. Without an adequate blood oxygen level, the body cannot function normally.
The saturation should be above 90% in normal arterial blood. A totally healthy person will have 95-100% saturation.
Medically, measuring Oxygen Saturation is termed Oximetry due to the use of a pulse oximeter which uses infra red light to and spectrophotometry based principles to estimate the level of O2 bound to haemoglobin in the blood when sat on a peripheral extremity such as the toe, finger or nose.
Oxygen saturation is the extent to which the blood is carrying as much oxygen as it is capable of doing. It is measured as a percentage. Oxygen saturation is the percentage of oxygen in the blood stream. Doctors become concerned when that percentage drops below 90%. It simple terms, at 82%, your brain other other organs are not receving enough oxygen to properly function. Anyone's oxygen saturation level varies from one moment in time to another. If you had a full copy of your sleep study report you might see reference to peak saturation (the highest saturation seen during the study), average saturation, saturation nadir (the lowest saturation recorded during the study), among other terms.
Please restrict your queries to one question.
When your oxygen saturation levels drop, your blood is not carrying enough oxygen to provide your body the levels it needs. If they drop low enough, your body will shut down and you can die. If you are hooked to a ventilator, this will help the body increase the oxygen saturation levels in your blood, potentially saving your life.
Sp02 stands for Saturation of Peripheral Oxygen. This is an indirect way to measure the level of oxygen i n the blood. The level of oxygen can be measured using a pulse oximeter.