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Body surface area. In physiology and medicine, the body surface area ( BSA) is the measured or calculated surface area of a human body. For many clinical purposes, BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass. Nevertheless, there have been several important critiques of the ...
To estimate the body surface area of a burn, the rule of nines assigns BSA values to each major body part: [3] This allows the emergency medical provider to obtain a quick estimate of how much body surface area is burned. For example, if a patient's entire back (18%) and entire left leg (18%) are burned, about 36% of the patient's BSA is affected.
The Lund and Browder chart is a tool useful in the management of burns for estimating the total body surface area affected. It was created by Dr. Charles Lund, Senior Surgeon at Boston City Hospital, and Dr. Newton Browder, based on their experiences in treating over 300 burn victims injured at the Cocoanut Grove fire in Boston in 1942. [ 1]
Cardiac index. Cardiac index ( CI) is a haemodynamic parameter that relates the cardiac output (CO) from left ventricle in one minute to body surface area (BSA), [ 1] thus relating heart performance to the size of the individual. The unit of measurement is litres per minute per square metre (L/min/m 2 ).
Total body surface area. Total body surface area ( TBSA) is an assessment of injury to or disease of the skin, such as burns or psoriasis . In adults, the Wallace rule of nines can be used to determine the total percentage of area burned for each major section of the body. [ 1]
The "Evans formula", described in 1952, was the first burn resuscitation formula based on body weight and surface area (BSA) damaged. The first 24 hours of treatment entails 1ml/kg/% BSA of crystalloids plus 1 ml/kg/% BSA colloids plus 2000ml glucose in water, and in the next 24 hours, crystalloids at 0.5 ml/kg/% BSA, colloids at 0.5 ml/kg ...
To allow comparison of results between people of different sizes, the C Cr is often corrected for the body surface area (BSA) and expressed compared to the average sized man as mL/min/1.73 m 2. While most adults have a BSA that approaches 1.7 m 2 (1.6 m 2 to 1.9 m 2), extremely obese or slim patients should have their C Cr corrected for their ...
which is equal to the rate of energy produced per unit surface area of an average person seated at rest. The BSA of an average person is 1.8 m 2 (19 ft 2). Metabolic rate is usually expressed in terms of the unit area of the total body surface (ANSI/ASHRAE Standard 55 [3]).