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

Superficie Quemada (Regla de los Nueves)

Calcule la superficie corporal total (SCT) afectada por quemaduras. Incluye modelos para adultos y niños con selección visual.

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.

Haga clic en las partes del cuerpo para marcar las zonas quemadas. El porcentaje se ajusta automáticamente según el tipo de paciente.

Superficie Quemada 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

Consejo Clínico

Al usar la regla de los nueves, recuerde que las quemaduras de primer grado (como las quemaduras solares simples) generalmente no se incluyen en los cálculos de reanimación hídrica. Concéntrese en las áreas de segundo y tercer grado.

Cómo 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

Ejemplos de cálculo

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

¿Por qué utilizar esta herramienta en tu vida diaria?

Precisión en trauma. Este servicio reemplaza las aproximaciones mentales con un cálculo estandarizado basado en evidencia, asegurando que las víctimas de quemaduras reciban la terapia de fluidos agresiva necesaria para prevenir el shock hipovolémico.