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🫀 Systemic Vascular Resistance Index (SVRI)

UseWhen to use: shock phenotyping with measured/estimated CI.

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StrataLow SVRI → vasodilated cues; high SVRI → vasoconstricted cues.

LimitsWhen not to use: unreliable transducer zero. · Pitfall: using CO instead of CI. · Bands are teaching ranges.

SourceStandard SVRI hemodynamic 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

80×(MAP−CVP)/CI.

When to use

When to use: shock phenotyping with measured/estimated CI.

How it works

SVRI = 80 × (MAP − CVP) / CI.

Key points

  • 80×(MAP−CVP)/CI.
  • Indexed afterload.
  • Next: shock phenotype.

References

  • Standard SVRI hemodynamic 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.

Mean arterial pressure (MAP)85 mmHg
CVP / RAP8 mmHg
Cardiac index (CI)2.8 L/min/m²

→SVRI2200dyn·s·cm⁻⁵·m²

  • MAP−CVP：77.0 mmHg
  • Cue：≈1500–2400 — common adult indexed band (source-dependent)
Verification & sources · governance
FAQ

Frequently asked questions

Does Systemic Vascular Resistance Index (SVRI) 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 Systemic Vascular Resistance Index (SVRI) calculated in practice? Can you show a worked example?
Inputs: Mean arterial pressure (MAP) 85 mmHg, CVP / RAP 8 mmHg, Cardiac index (CI) 2.8 L/min/m² → Result: SVRI 2200 dyn·s·cm⁻⁵·m²（MAP−CVP: 77.0 mmHg, Cue: ≈1500–2400 — common adult indexed band (source-dependent)）
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