Burns that cover more than 10 percent of the body's surface area are generally considered to be critical in most locations, but be sure to follow your local protocols. To determine the total burned surface area in the field, use the Rule of Nines. Remember to only count second-degree burns or worse. First-degree burns do not need specialty treatment.
Specific Critical Burns
Most burns are determined to be critical by the depth and the size of the burn. However, burns on important parts of the body are critical regardless of the overall size of the burn itself. Burns still must be second-degree or worse to be considered critical. First-degree burns are not counted.Burns to these areas are considered critical:
- Face
- Burns that completely encircle the hands or feet
- Genitals

