smoker or non-smoker, normal blood O2 sat falls w/in 95-100%. anything w/in that range is considered optimal and normal, with the higher the better. depending on the age of the person, how long they smoked, and how heavily they smoked, and as long as there is no disease active process at work (such as diagnosis w/COPD, lung cancer, etc) an optimal level should fall w/in the same range as a non-smoker.
90
Please restrict your queries to one question.
Normal oxygen saturation levels vary slightly depending on age and activity. A blood oxygen level of less than 90 percent is considered abnormal. The organs in the body need a continuous supply of oxygen to function properly. If oxygen saturation levels in the body become too low, various problems can develop. When oxygen saturation is too low it is called Hypoxemia.
97% is the normal oxygen saturation.
"Oxygen saturation" refers to the fraction of hemoglobin that is saturated by oxygen. It is related to the partial pressure of oxygen in the inspired air and, therefore, to altitude. Normal oxygen saturation in an otherwise healthy individual at sea level is > 95%. Low oxygen saturations can be found in a wide variety of lung diseases.
Over 90%
60
The saturation should be above 90% in normal arterial blood. A totally healthy person will have 95-100% saturation.
98
What is the best oxygen sat level for fighting lung cancer?
1g of Hb can bind with 1.34mL of oxygen instead 1.39 at full saturation because it does so at normal oxygen capacity.
Deoxygenated blood from pulmonary circulation and cardiac perfusion is dumped into the the left atria, which brings down the oxygen saturation to about 97%. This is referred to as physiological shunting.