<prompt> Rule of 9 in burns is used to denote -Depth of bumsof total body surface areaSeverity of bumsType of bums  <response>: Ans. is b i.e., of total body surface areao Rule of 9 Wallaces formula - it is used for estimation of bum area The surface area burnt is more important than the degree of bum, in assessing prognosis of a given case. For example, a first degree bum over a wide area is more dangerous than a third degree bum over a limited area.Area of bodyIn Children Lund and browder chartIn Adults Rule of nine: Wallaces formula 1-4 years5-9 years10-14 yearsAdultHead and Neck1915139Trunk front16161618 Front of chest abdomenTrunk back16161618 Back of chest abdomenUpper limbs19191918 Rightleft upper limbsLower limbs30343536 Frontback of right and left lower limbsGenitals0011 