In burn assessment, TBSA is used to estimate which of the following?

• A. Temperature of burn
• B. Depth of burn
• C. Total Body Surface Area affected
• D. Color of burn

Answer: (C)

TBSA stands for Total Body Surface Area affected. It measures how much of the body has burn injuries, not how deep the burn is, how hot it is, or what color the burn appears to be. Depth describes tissue layers involved (superficial, partial-thickness, full-thickness) and is assessed by appearance, sensation, blistering, and tissue texture, while temperature and color can give clues about depth but aren’t what TBSA quantifies. Knowing the burn extent is crucial because larger surface involvement drives fluid resuscitation needs, nutritional support, and prognosis. In children, age-adjusted charts (like Lund and Browder) are used to estimate TBSA more accurately due to changing body proportions with growth.