Mixed venous oxygen saturation (SVO2) is a critical measure of the balance between oxygen delivery and oxygen consumption in the body. The normal range of SVO2 typically falls between 60% and 80%. This range reflects sufficient oxygen being delivered to tissues and adequately supports cellular metabolism. When SVO2 levels are within this range, it indicates that oxygen supply is meeting the needs of the body’s tissues effectively.
Values below this range may suggest inadequate oxygen delivery or increased oxygen consumption, which can occur in conditions such as shock or severe anemia. Conversely, values above this range could indicate reduced oxygen consumption due to various factors, such as sepsis or decreased metabolic activity.
In clinical practice, monitoring SVO2 is essential in critically ill patients, as it provides insights into their hemodynamic status and informs necessary interventions to optimize oxygen delivery and improve tissue perfusion. The chosen answer aligns with established guidelines and clinical knowledge regarding normal physiological parameters.