If you're referring to hypo-oxygenation, an arterial stick would be a surefire method. Id you mean naturally, non-pathological de-oxygenation as part of the normal circulatory process, venous blood will show this and a sample from a vein will do the trick.
Anywhere along the systemic side of the circulation, like veins, right atrium, right ventrical, pulmonary artery etc.
Ans: Other than being dead....the blood viens show/turn blue...as opposed to red(oxygenated)
Yes. The pulmonary and umbilical arteries carries deoxygenated blood.
Deoxygenated With the exception of the pulmonary vessels, veins carry deoxygenated blood; arteries carry oxygenated blood.
The color of a red blood cell is dark red when it is deoxygenated.
Veins carry deoxygenated blood from the tissues and organs to the heart. Arteries are the means for carrying the oxygenated blood.
deoxygenated blood
Deoxygenated blood.
Deoxygenated blood entering the right atrium is referred to as venous blood.
Deoxygenated blood
deoxygenated blood
deoxygenated blood