What value indicates normal SvO2 levels?

Normal mixed venous oxygen saturation (SvO2) levels fall within the range of 65-75%. This value is critical for assessing a patient’s oxygen delivery and utilization. SvO2 reflects the balance between oxygen delivery to tissues and the oxygen consumption by those tissues. When SvO2 levels stay within this normal range, it typically indicates that the body's tissues are adequately oxygenated and that there is a good balance between oxygen supply and demand.

Values below this range may suggest inadequate oxygenation or an increased oxygen demand, while values above this range can indicate potential hyperoxygenation or sepsis, where tissues are not adequately utilizing the delivered oxygen. Therefore, recognizing that 65-75% is the standard for normal SvO2 is essential for effective patient monitoring and management in ECMO and other critical care settings.