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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Medico

Superficie Ustionata (Regola dei Nove)

Calcola la superficie corporea totale (SCT) interessata da ustioni. Supporta pazienti adulti e pediatrici con selezione visiva delle parti del 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.

Clicca sulle parti del corpo per selezionare le aree ustionate. La percentuale si aggiorna automaticamente in base al tipo di paziente.

Superficie Ustionata Totale (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

Consiglio Clinico

Quando si usa la regola dei nove, ricordare che le ustioni di primo grado (come le semplici scottature solari) non sono solitamente incluse nei calcoli per la rianimazione fluida. Concentrarsi sulle aree di secondo e terzo grado.

Come funziona

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.

Formula di calcolo

Sum of affected body part percentages

Esempi di calcolo

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

Perché utilizzare questo strumento nella tua vita quotidiana?

Precisione nel trauma. Questo servizio sostituisce le approssimazioni mentali con un calcolo standardizzato e basato sull'evidenza, garantendo che le vittime di ustioni ricevano la terapia fluida aggressiva necessaria per prevenire lo shock ipovolemico.