🩸 Venous Oxygen Content (CvO₂)
UseWhen to use: shock / DO₂–VO₂ teaching with ScvO₂ or SvO₂ available.
StrataPair with CaO₂ for AV difference and extraction ratio.
LimitsWhen not to use: wrong Hb units. · Pitfall: ScvO₂ ≠ mixed SvO₂. · Dissolved O₂ usually tiny.
SourceStandard venous oxygen content definition
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
1.34×Hb×SvO₂ + 0.0031×PvO₂.
When to use
When to use: shock / DO₂–VO₂ teaching with ScvO₂ or SvO₂ available.
How it works
CvO₂ = 1.34 × Hb × SvO₂ + 0.0031 × PvO₂.
Key points
- 1.34×Hb×SvO₂ + 0.0031×PvO₂.
- Venous content.
- Next: CaO₂ / VO₂.
References
- Standard venous oxygen content definition
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Haemoglobin | 12 g/dL |
|---|---|
| SvO₂ / ScvO₂ | 70 % |
| PvO₂ (optional) | 40 mmHg |
→CvO₂11.4mL O₂/dL
- Bound to Hb：11.3 mL/dL
- Dissolved：0.12 mL/dL
- Formula：1.34×Hb×SvO₂ + 0.0031×PvO₂
Verification & sources · governance
FAQ
Frequently asked questions
- Does Venous Oxygen Content (CvO₂) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Venous Oxygen Content (CvO₂) calculated in practice? Can you show a worked example?
- Inputs: Haemoglobin 12 g/dL, SvO₂ / ScvO₂ 70 %, PvO₂ (optional) 40 mmHg → Result: CvO₂ 11.4 mL O₂/dL（Bound to Hb: 11.3 mL/dL, Dissolved: 0.12 mL/dL, Formula: 1.34×Hb×SvO₂ + 0.0031×PvO₂）