TBSA & Rule of Nines

Total body surface area (TBSA) is an assessment measure of burns of the skin, burned surface area is calculated as a percentage of total body surface area to determine burn size. In adults, the rule of nines is used to To approximate the percentage of burned surface area.

The total body surface area of a burn can be estimated by using the "Rule of Nines" in adults. In babies and young children, different percentages are used because the ratio of the combined surface area of the head and neck to the surface area of the limbs is typically larger in children than that of an adult.
Burn  percentage in adults, Rule of nines

A method of estimating the extent of body surface that has been burned in an adult, dividing the body into sections of 9 per cent or multiples of 9 per cent. 

An adult who has been burned, the percent of the body involved can be calculated as follows:

As an example, if both legs (18% x 2 = 36%), the groin (1%) and the front chest and abdomen were burned, this would involve 55% of the body.

Rule of palms

The surface of the patient's palm represents approximately 1% of body surface area and is helpful in estimating the area of small burns.

Parkland formula
The Parkland Formula gives you the calculation you need to know how much fluids to give to patient.

Fluid Requirements = TBSA burned (%) x Weight (kg) x 4 mL (RL)
                                                                                                1 kg

Thanks for reading TBSA & Rule of Nines

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