Oxygen level in human body: Your blood oxygen level (blood oxygen saturation

Your blood oxygen level (blood oxygen saturation ) is the amount of oxygen that's circulating in your blood. It can be measured with a blood test or a pulse oximeter. IntroductionBlood oxygen level in the human body refers to the concentration of oxygen dissolved or bound to hemoglobin in the bloodstream. It is typically measured as arterial oxygen saturation (SaO2) or oxygen saturation (SpO2), expressed as a percentage. SaO2 or SpO2 measurements provide valuable information about oxygen transport and delivery efficiency in the body . The blood oxygen levels of your body is a measure of how much oxygen the red blood cells are carrying 95 to 100 percent is considered normal.