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🫁 Oxygen Delivery Index (DO₂I)

UseWhen to use: shock / ICU oxygen-supply assessment with CI and CaO₂ (or Hb/SaO₂).

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StrataLow DO₂I suggests delivery limitation cues — pair with VO₂/O₂ER.

LimitsWhen not to use: inaccurate CO/CI. · Pitfall: using CO instead of CI. · Not a transfusion trigger alone.

SourceStandard DO₂I definition

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Scene next step
📋circ hemoOpen scene pack →
Related scores
Score + version; reference only — not a substitute for care · no HIS write

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Methodology · worked example, guidelines & full notes
Clinical takeaway

Indexed DO₂.

When to use

When to use: shock / ICU oxygen-supply assessment with CI and CaO₂ (or Hb/SaO₂).

How it works

DO₂I = CI × CaO₂ × 10.

Key points

  • Indexed DO₂.
  • Content or Hb mode.
  • Next: VO₂ / lactate.

References

  • Standard DO₂I 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.

Input modeCI + CaO₂
Cardiac index (CI)2.8 L/min/m²
CaO₂18 mL/dL
Haemoglobin (Hb mode)12 g/dL
SaO₂ (Hb mode)97 %
PaO₂ optional (Hb mode)90 mmHg

→DO₂I504mL/min/m²

  • CaO₂：18.00 mL/dL
  • Cue：≈400–650 — common adult indexed band (source-dependent)
Input modeCI + Hb + SaO₂ (+ optional PaO₂)
Cardiac index (CI)2.8 L/min/m²
CaO₂18 mL/dL
Haemoglobin (Hb mode)12 g/dL
SaO₂ (Hb mode)97 %
PaO₂ optional (Hb mode)90 mmHg

→DO₂I445mL/min/m²

  • CaO₂：15.88 mL/dL
  • Cue：≈400–650 — common adult indexed band (source-dependent)
Verification & sources · governance
FAQ

Frequently asked questions

Does Oxygen Delivery Index (DO₂I) 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 Oxygen Delivery Index (DO₂I) calculated in practice? Can you show a worked example?
Inputs: Input mode CI + CaO₂, Cardiac index (CI) 2.8 L/min/m², CaO₂ 18 mL/dL, Haemoglobin (Hb mode) 12 g/dL, SaO₂ (Hb mode) 97 %, PaO₂ optional (Hb mode) 90 mmHg → Result: DO₂I 504 mL/min/m²（CaO₂: 18.00 mL/dL, Cue: ≈400–650 — common adult indexed band (source-dependent)） Inputs: Input mode CI + Hb + SaO₂ (+ optional PaO₂), Cardiac index (CI) 2.8 L/min/m², CaO₂ 18 mL/dL, Haemoglobin (Hb mode) 12 g/dL, SaO₂ (Hb mode) 97 %, PaO₂ optional (Hb mode) 90 mmHg → Result: DO₂I 445 mL/min/m²（CaO₂: 15.88 mL/dL, Cue: ≈400–650 — common adult indexed band (source-dependent)）
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