How can the percentage of total body surface area (TBSA) burned be estimated?

The percentage of total body surface area (TBSA) burned can be accurately estimated using established methods such as the Lund Browder chart or the Rule of Nines. These tools provide systematic ways to evaluate and quantify the extent of burns across the body.

The Rule of Nines is a straightforward method that divides the body into sections, each representing approximately 9% (or multiples of 9%) of the total body surface area. For example, in adults, the head and neck are 9%, each arm is 9%, the anterior and posterior torso accounts for 18% each, and each leg constitutes 18%. This method is particularly useful for rapid assessments in emergency situations.

The Lund Browder chart, on the other hand, offers a more nuanced approach by taking into account variations in body proportions, especially in children. This chart considers the age of the patient and adjusts the percentage calculations accordingly, leading to more accurate assessments in pediatric cases.

Both of these methods are preferred over relying solely on clinical experience or estimations based on a patient's age and weight since they are based on established anatomical knowledge and are typically more uniform across various patient populations. Calculating fluid resuscitation needs is a critical aspect of burn treatment but is secondary to accurately assessing