ICU and Critical Care · Cardiology

Arteriovenous Oxygen Content Difference (C(a–v)O₂) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

cavo2 hemoglobin g dl

g/dL

Allowed range: 3–25 g/dL

cavo2 sao2 percent

Allowed range: 50–100 %

cavo2 svo2 percent

Allowed range: 20–90 %

Result

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Clinical inputs

cavo2 hemoglobin g dl (g/dL)Accepted range: 3 to 25
cavo2 sao2 percent (%)Accepted range: 50 to 100
cavo2 svo2 percent (%)Accepted range: 20 to 90

Primary source

Fick principle arteriovenous oxygen content difference C(a–v)O₂ = CaO₂ − CvO₂ using the same hemoglobin-based oxygen content terms. DOI: 10.1164/ajrccm.158.1.9711041. PMID: 9655694. Scope: adult hemodynamic and oxygen delivery assessment. (1998)

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