In an adult, % of total body surface required to be involved in a burn injury to cause shock: (A) 15, (B) 20, (C) 25, (D) 30
Answer is A. As the size approaches 10-15% of total body surface area (TBSA), the loss of intravascular fluid can cause a level of circulatory shock. Fuhermore, once the area increases to 25% of TBSA, the inflammatory reaction causes fluid loss in vessels remote from the burn injury.Ref: Bailey and love 27e pg: 619