🫁 Murray Lung Injury Score (LIS)
UseWhen to use: legacy ARDS/ALI severity description or research comparison.
Strata>2.5 historically severe injury/ARDS; prefer Berlin for modern diagnosis.
LimitsWhen not to use: as the sole modern ARDS diagnostic criterion. · Pitfall: averaging when most domains are missing. · Berlin uses PaO₂/FiO₂ + PEEP framing.
SourceMurray JF et al. Am Rev Respir Dis 1988 (LIS)
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
Methodology · worked example, guidelines & full notes
Mean of domains.
When to use
When to use: legacy ARDS/ALI severity description or research comparison.
How it works
Mean of scored domains (CXR, PaO₂/FiO₂, PEEP, compliance), each 0–4.
Key points
- Mean of domains.
- >2.5 severe historic band.
- Next: Berlin ARDS / PF ratio.
References
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.
| Chest radiograph alveolar consolidation | 2 quadrants (2) |
|---|---|
| Hypoxemia PaO₂/FiO₂ | 175–224 (2) |
| PEEP (cmH₂O) | 9–11 (2) |
| Respiratory system compliance (mL/cmH₂O) | 40–59 (2) |
→Murray LIS2
- Domains scored：4/4
- Cue：Mild-to-moderate lung injury band (historical)
| Chest radiograph alveolar consolidation | None (0) |
|---|---|
| Hypoxemia PaO₂/FiO₂ | ≥ 300 (0) |
| PEEP (cmH₂O) | ≤ 5 (0) |
| Respiratory system compliance (mL/cmH₂O) | ≥ 80 (0) |
→Murray LIS0
- Domains scored：4/4
- Cue：No lung injury band
Verification & sources · governance
FAQ
Frequently asked questions
- Does Murray Lung Injury Score (LIS) 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 Murray Lung Injury Score (LIS) calculated in practice? Can you show a worked example?
- Inputs: Chest radiograph alveolar consolidation 2 quadrants (2), Hypoxemia PaO₂/FiO₂ 175–224 (2), PEEP (cmH₂O) 9–11 (2), Respiratory system compliance (mL/cmH₂O) 40–59 (2) → Result: Murray LIS 2（Domains scored: 4/4, Cue: Mild-to-moderate lung injury band (historical)） Inputs: Chest radiograph alveolar consolidation None (0), Hypoxemia PaO₂/FiO₂ ≥ 300 (0), PEEP (cmH₂O) ≤ 5 (0), Respiratory system compliance (mL/cmH₂O) ≥ 80 (0) → Result: Murray LIS 0（Domains scored: 4/4, Cue: No lung injury band）