You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Burns grading - Grade 2 indicates involvement of: and explain in detail?
Ref: Sabiston Textbook of Surgery. 19th Edition, Pg: 522.Explanation:Depths of burn injury* First degree--injury localized to the epidermisSuperficial second degree--injury to the epidermis and superficial dermisDeep second degree--injury through the epidermis and deep into the dermisThird degree--full-thickness injury through the epidermis and dermis into subcutaneous fatFourth degree--injury through the skin and subcutaneous fat into underlying muscle or boneRule of ninesEach upper limb 9% Total body surface area (TBS A)Each lower limb 18% TBS AThe torso 18% TBS A each side( anterior and posterior)The head and neck 9% TBS AGenitalia l % TBSAParkland's FormulaTotal percentage body surface area x weight (kg) x 4 = volume ( ml)Half this volume is given in the first 8 hoursSecond half is given in the next 16 hoursFigure: Rule of Nines in Adults