Body surface area is used to help calculate the most accurate medication dosage for a patient. It is also used in some cases to determine fluid requirements administered intravenously. October 317:1098. There are several methods available for estimating pediatric dosages, the most commonly used being dosing according to body weight or body surface area (BSA).. Doses are often expressed as mg/kg/day (similar to mg/kg) or mg/kg/dose and accompanied by a frequency of administration that can vary from once daily to every hour. The Nomogram method is utilized to determine the correct pediatric medication dosage based specifically on the patient's size. Body surface area in square meters = the square root of " Wt(in Kg) x Ht(in meter) ÷ 3600" Mosteller RD. Pediatric Dosage Calculations Pediatric Dosage Calculations Most drugs in children are dosed according to body weight (mg/kg) or body surface area (BSA) (mg/m2). Dubois D, Dubois EF. This review will discuss how to solve nursing dosage and calculation body surface area problems. Various Body Surface Area formulas have been developed over the years, originally by Dr.s Du Bois & Du Bois, followed by Gehan and George, Haycock, Boyd and Mosteller. Their age ranged from 5 … Nomogram Method . There were many formulas developed in the past years for calculating the Body Surface Area. It is probably not worth the trouble to debate about which formula may or may not be slightly better. These formulas all give slightly different results. Estimating Percent Total Body Surface Area in Children Affected by Burns (A) Rule of "nines" (B) Lund-Browder diagram for estimating extent of burns (Adapted from The Treatment of Burns, edition 2, Artz CP and Moncrief JA, Philadelphia, WB Saunders Company, 1969) Author: changf We retrospectively compared body surface area (BSA) using the Mosteller formula square root(H x (w/360)) and a simple weight-based BSA formula ([4Wkg+7]/ [90+Wkg]). Pediatric dosage explained. Care must be taken to properly convert body weig ht from pounds to kilograms (1 kg= 2.2 lb) before calculating doses based on body weight. For example, some medications ordered for a pediatric patient may be based on body surface area (BSA) and strong medications such as chemo agents (anticancer medications). The participants were 363 children who underwent cardiac surgery from 1991 to 2000. Simplified Calculation of Body Surface Area. Used Formula (Mosteller): Cato Software Solutions does not take any responsibility about … A formula to estimate the approximate surface area if height and weight be known. CATO - Quality Management for Oncology Therapy. BSA is a measurement used in many medical tasks. The Mosteller formula is considered to be the most common body surface area equation today. Body Surface Area: DISCLAIMER: All calculations must be confirmed before use. Arch Intern Med. 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