The "rule of nines" is a method used to estimate the total body surface area (TBSA) affected by burns in adults. It divides the body into anatomical regions, each representing approximately 9% or a multiple of 9% of the total body surface area. This method provides a rough estimate of the extent of burns and helps guide initial management and fluid resuscitation. Here's a breakdown of the rule of nines: Head and Neck: Approximately 9% of TBSA for the front and back of the head and neck combined. Anterior Trunk: Approximately 18% of TBSA for the front of the torso (including the chest and abdomen). Posterior Trunk: Approximately 18% of TBSA for the back of the torso. Each Arm: Approximately 9% of TBSA for each arm (front and back combined). Each Leg: Approximately 18% of TBSA for each leg (front and back combined). Genitalia: Approximately 1% of TBSA for the genital area #Burn #TBSA #RuleOfNines #Rule #Nines #diagnosis #SurfaceArea
