What is the Rule of Nines?

The Rule of Nines is a clinical tool used by medical professionals to estimate the Total Body Surface Area (TBSA) affected by a burn. It divides the body into sections of 9% (or multiples of 9) to allow for quick assessment in emergency situations.

How does the Rule of Nines differ for children?

In infants and young children, the head occupies a larger percentage of TBSA (18%) while the legs occupy less (14% each). This calculator automatically adjusts the percentages when the 'Pediatric' mode is selected.

Why is TBSA calculation important?

Calculating TBSA is critical for determining the severity of a burn and guiding fluid resuscitation needs (using formulas like the Parkland Formula) and deciding if a patient needs a specialized burn center.

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Médico

Superfície Queimada (Regra dos Nove)

Calcule a superfície corporal total (SCT) afetada por queimaduras. Suporta pacientes adultos e pediátricos com seleção visual das partes do corpo.

In the emergency management of burn victims, the most critical initial calculation is the Total Body Surface Area (TBSA) affected. This percentage determines everything from the volume of IV fluids required for resuscitation (the Parkland Formula) to whether a patient meets the criteria for transfer to a specialized Burn Center. The Rule of Nines is a rapid, reliable method for estimating this area by dividing the body into sections that represent approximately 9% of the total surface. Our calculator provides a visual interface to select these areas and automatically adjusts the percentages for pediatric patients, whose body proportions differ from adults.

Clique nas partes do corpo para alternar as áreas queimadas. A porcentagem será atualizada automaticamente com base no tipo de paciente.

Superfície Queimada Total (SCT)

Total Body Surface Area (TBSA)

Medical Disclaimer: This tool is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

Evidence & References

Dica Clínica

Ao usar a regra dos nove, lembre-se de que as queimaduras de 1º grau (como simples queimaduras solares) geralmente não são incluídas nos cálculos de ressuscitação volêmica. Concentre-se nas áreas de 2º e 3º graus.

Como funciona

The tool uses the Wallace Rule of Nines for adults and the modified Lund-Browder proportions for pediatric patients. It sums the percentages of all selected body parts to provide a total TBSA estimate.

Fórmula de cálculo

Sum of affected body part percentages

Exemplos de cálculo

1. **Adult**: Front of torso (18%) and one arm (9%) = **27% TBSA**.

Por que usar essa ferramenta no seu dia a dia?

Precisão no trauma. Este serviço substitui as aproximações mentais por um cálculo padronizado e baseado em evidências, garantindo que as vítimas de queimaduras recebam a fluidoterapia agressiva necessária para prevenir o choque hipovolêmico.