Total body surface areatbsa total body surface area tbsa is an assessment measure of burns of the skin burned surface area is calculated as a percentage of total body surface area to determine burn size. Bsa is a measurement used in many medical tasks. Body surface area bsa as the name suggests is the calculated or estimated surface area of a persons body. The result is in squared meters which easily be converted to square feet inches or yards as needed. In physiology and medicine the body surface area is the measured or calculated surface area of a human body. Nevertheless there have been several important critiques of the use of bsa in determining the dosage of medications with a narrow therapeutic index such as chemotherapy.

Total body surface area tbsa measures the area of a burn injury in comparison with the entire surface area of the body. Typically there is a 410 fold variation in drug clearance between. Weight is highly affected by the abnormalities in adipose tissue but however body surface area bsa is usually known to be more effective because it does not depend upon the content or abnormality of adipose tissue in your 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. The area of the surface or surface area is the number of square units measured in inches feet yards miles etc needed to completely cover the surface of the object. These formulas all give slightly different results.

Body surface area calculator the calculator below computes the total surface area of a human body referred to as body surface area bsa. You can estimate the body surface area on an adult that has been burned by using multiples of 9. According to mostellers simplified calculation of body surface area in metric terms the body surface area the square root of product of the weight in kg times the height in cm divided by 3600. Various body surface area formulas have been developed over the years originally by drs du bois du bois followed by gehan and george haycock boyd and mosteller. Where height is in meters and mass is in kg. An adult who has been burned the percent of the body involved can be calculated as follows.

As an example if both legs 18 x 2 36 the groin 1 and the front chest and abdomen were burned this would involve 55 of the body. The normal body surface area is generally taken to be 17 m2 but in actual fact the body surface area depends on more than just height and weight. Direct measurement of bsa is difficult and as such many formulas have been published that estimate bsa. The calculator below provides results for some of the most popular formulas. Body surface area body mass index bmi lean body weight men 110 x weight kg 128 weight2 100 x height m2 lean body weight women 107 x weight kg 148 weight2 100 x height m2 ideal body weight men 50 23 height in 60. To estimate your body surface area our bsa calculator uses the following formula 1.

020247 x height m0725 x mass kg0425. In the body the epidermis makes up the outermost layer and the surface area is essentially a measurement of how much exposed skin the body has. In adults the rule of nines is used to to approximate the percentage of burned surface area.

Gallery of Measurement Of Total Body Surface Area