There are multiple factors effecting oxygen carrying capacity of blood. These include:
c02
Blood Agents
Combining capacity for oxygen refers to the maximum amount of oxygen that can be bound to hemoglobin in the blood. It is influenced by factors such as the concentration of hemoglobin in the blood and the oxygen saturation level. This measurement is important in assessing the oxygen-carrying capacity of the blood.
oxygen carrying capacity is 1.34 ml of oxygen per gram of hemoglobin.... taking normal amount of Hb in humans as 15g/ dL , then oxygen carrying capacity for 100 ml of bood will be = 1.34*15 = 20 ml of oxygen approximately.
Iron.
Blood Agent
Scientifically speaking, No. If you had blood anywhere in your body with no oxygen, you would most likely be dead. There is, however a condition called deoxygenated blood, which occurs mostly in veins that are returning blood to the heart to be pumped to the lungs via the pulmonary arteries to become oxygenated. The difference between oxygenated blood and deoxygenated blood is only about 25%. This means that your blood is always carrying some oxygen, only sometimes at full capacity and sometimes at partial capacity. When it just leaves your lungs, at full capacity, it is carrying its full load at 100%. But when it is returning to the heart and lungs from using up some of its oxygen during metabolism in the body tissues, it is carrying a load of carbon dioxide, which drops its oxygen carrying capacity to 75%. This 75% carrying capacity is called deoxygenated blood. So, I hope your blood has some oxygen in it!
Brain failure
Red blood cells contain a protein called hemoglobin. Hemoglobin is able to bind to oxygen molecules. Therefore, the presence of hemoglobin the red blood cells makes them capable of carrying oxygen.
iron
increase red blood cell orincrease the oxygen-carrying capacity of the blood for improved athletic endurance.
Anemia is any condition in which the oxygen-carring capacity of blood is less than that required by the body.