What mean po2 venous?

Mean PO2 venous refers to the average partial pressure of oxygen in venous blood, which reflects the amount of oxygen that has been delivered to tissues and is returning to the heart. It is typically lower than arterial PO2 due to oxygen consumption by tissues. The mean venous PO2 can provide insights into a person's oxygen delivery and overall metabolic status. Normal values usually range from 40 to 50 mmHg, but can vary based on physiological and pathological conditions.