🌬️ Static Respiratory Compliance (Cstat)
UseWhen to use: volume-ventilated patients with a reliable inspiratory hold.
StrataLower Cstat → stiffer lungs/chest wall; pair with driving pressure.
LimitsWhen not to use: active triggering / no true plateau. · Pitfall: using Ppeak instead of Pplat. · Not equal to dynamic compliance.
SourceStandard static compliance teaching formula
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
VT÷(Pplat−PEEP).
When to use
When to use: volume-ventilated patients with a reliable inspiratory hold.
How it works
Cstat = VT / (Pplat − total PEEP).
Key points
- VT÷(Pplat−PEEP).
- Hold maneuver.
- Next: ΔP / VT strategy.
References
- Standard static compliance teaching formula
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.
| Tidal volume (VT) | 400 mL |
|---|---|
| Plateau pressure (Pplat) | 22 cmH₂O |
| Total PEEP | 8 cmH₂O |
→Cstat28.6mL/cmH₂O
- ΔP (Pplat−PEEP)：14.0 cmH₂O
- Cue：20–39 — reduced compliance band (ARDS / stiff chest wall cues)
Verification & sources · governance
FAQ
Frequently asked questions
- Does Static Respiratory Compliance (Cstat) 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 Static Respiratory Compliance (Cstat) calculated in practice? Can you show a worked example?
- Inputs: Tidal volume (VT) 400 mL, Plateau pressure (Pplat) 22 cmH₂O, Total PEEP 8 cmH₂O → Result: Cstat 28.6 mL/cmH₂O（ΔP (Pplat−PEEP): 14.0 cmH₂O, Cue: 20–39 — reduced compliance band (ARDS / stiff chest wall cues)）