Version July 2025
| Parameter | SvO2 | ScvO2 |
| Source | Proximal pulmonary artery | SVC |
| Composition | Mixture of both IVC and SVC blood | Primarily measures blood from the upper half of the body |
| Oxygen value | Typically lower (2 to 5%) than ScvO2 | Typically higher than SvO2 |
