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🔥 Lund–Browder Burn %TBSA

UseWhen to use: pediatric or adult burns when rule of nines is too coarse.

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Strata%TBSA drives fluid formulas and transfer thresholds with depth/location.

LimitsWhen not to use: replacing depth assessment. · Pitfall: counting erythema-only areas. · Not a sole Parkland order.

SourceLund–Browder age-adjusted burn surface-area chart

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
📋Trauma resuscitationOpen scene pack →
Related scores
Matching pathway
🧭compartment_syndromeOpen pathway →
Score + version; reference only — not a substitute for care · no HIS write

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Methodology · worked example, guidelines & full notes
Clinical takeaway

Age-adjusted head/thigh/leg.

When to use

When to use: pediatric or adult burns when rule of nines is too coarse.

How it works

Sum (region fraction 0–1 × age-specific regional %).

Key points

  • Age-adjusted head/thigh/leg.
  • More accurate in children.
  • Next: Parkland / ABSI / rBaux.

References

  • Lund–Browder age-adjusted burn surface-area chart

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.

Age group (head/thigh/leg factors)5–9 y
Head (front+back fraction burned)0.5 0–1
Neck fraction0 0–1
Anterior trunk fraction0 0–1
Posterior trunk fraction0 0–1
Buttocks fraction0 0–1
Genitalia fraction0 0–1
Left upper arm fraction0 0–1
Right upper arm fraction0 0–1
Left forearm fraction0 0–1
Right forearm fraction0 0–1
Left hand fraction0 0–1
Right hand fraction0 0–1
Left thigh fraction0 0–1
Right thigh fraction0 0–1
Left leg fraction0 0–1
Right leg fraction0 0–1
Left foot fraction0 0–1
Right foot fraction0 0–1

→%TBSA (Lund–Browder)6.5%

  • Age table head %：13
  • Cue：<10% — still assess depth, airway, and special sites
Age group (head/thigh/leg factors)0–1 y
Head (front+back fraction burned)0.5 0–1
Neck fraction0 0–1
Anterior trunk fraction0 0–1
Posterior trunk fraction0 0–1
Buttocks fraction0 0–1
Genitalia fraction0 0–1
Left upper arm fraction0 0–1
Right upper arm fraction0 0–1
Left forearm fraction0 0–1
Right forearm fraction0 0–1
Left hand fraction0 0–1
Right hand fraction0 0–1
Left thigh fraction0 0–1
Right thigh fraction0 0–1
Left leg fraction0 0–1
Right leg fraction0 0–1
Left foot fraction0 0–1
Right foot fraction0 0–1

→%TBSA (Lund–Browder)9.5%

  • Age table head %：19
  • Cue：<10% — still assess depth, airway, and special sites
Verification & sources · governance
FAQ

Frequently asked questions

Does Lund–Browder Burn %TBSA 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 Lund–Browder Burn %TBSA calculated in practice? Can you show a worked example?
Inputs: Age group (head/thigh/leg factors) 5–9 y, Head (front+back fraction burned) 0.5 0–1, Neck fraction 0 0–1, Anterior trunk fraction 0 0–1, Posterior trunk fraction 0 0–1, Buttocks fraction 0 0–1, Genitalia fraction 0 0–1, Left upper arm fraction 0 0–1… → Result: %TBSA (Lund–Browder) 6.5 %（Age table head %: 13, Cue: <10% — still assess depth, airway, and special sites） Inputs: Age group (head/thigh/leg factors) 0–1 y, Head (front+back fraction burned) 0.5 0–1, Neck fraction 0 0–1, Anterior trunk fraction 0 0–1, Posterior trunk fraction 0 0–1, Buttocks fraction 0 0–1, Genitalia fraction 0 0–1, Left upper arm fraction 0 0–1… → Result: %TBSA (Lund–Browder) 9.5 %（Age table head %: 19, Cue: <10% — still assess depth, airway, and special sites）
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