Final answer:
On cardiopulmonary bypass, a higher MvO2 is associated with worse outcomes.
Step-by-step explanation:
The MvO2 or Mixed venous oxygen content refers to the amount of oxygen present in the blood returning to the heart via the pulmonary veins. On cardiopulmonary bypass, a higher MvO2 is associated with worse outcomes. This is because a higher MvO2 indicates that the body's oxygen demand is not being met, which can lead to tissue hypoxia and organ dysfunction.