Abbreviated Burn Severity Index (ABSI)
Abbreviated Burn Severity Index (Tobiasen 1982): sex + age band + inhalation injury + full-thickness burn + %TBSA band; grades threat to life from 2-3 very low to >= 12 maximum.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Sex
- Female
- Age
- 50 years
- %TBSA burned
- 35 %
- Inhalation injury
- Yes
- Full-thickness (third-degree) burn
- Yes
Result: ABSI 10 — severe threat to life (10-11).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 2-5
- Very low to moderate-low threat to life.
- 6-9
- Moderate to serious.
- >= 10
- Severe to maximum threat to life (sex + age band + inhalation + full-thickness + %TBSA band). A severity index, not a diagnosis.
What you enter
- Sex
- Age
- %TBSA burned
- Inhalation injury
- Full-thickness (third-degree) burn
How this is calculated
Tobiasen J, Hiebert JM, Edlich RF. The abbreviated burn severity index. Ann Emerg Med. 1982;11(5):260-262. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.