ICU and Critical Care · Pulmonology
Mixed Venous Oxygen Content (CvO2) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 20–90 %
Allowed range: 5–20 g/dL
Allowed range: 10–80 mmHg
Result
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Clinical inputs
- Mixed venous oxygen saturation, SvO2 (%)Accepted range: 20 to 90
- Hemoglobin (g/dL)Accepted range: 5 to 20
- Mixed venous PO2, PvO2 (mmHg)Accepted range: 10 to 80
Primary source
Oxygen content equation applied to mixed venous (pulmonary artery) blood: CvO2 (mL O2/dL) = 1.34 × Hb (g/dL) × SvO2 + 0.003 × PvO2 (mmHg) (Respiratory Therapy Zone, Oxygen Content Difference C(a-v)O2 calculator). Typical values: PvO2 about 40 mmHg, SvO2 about 70–75%, venous O2 content about 150 mL/L (15 mL/dL) (Champion L. Oxygen delivery, cardiac function and monitoring. In: Fuller J, Granton J, McConachie I, eds. Handbook of ICU Therapy. 3rd ed. Cambridge University Press; 2015). (2015)
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