A formula for estimating percentage of body surface areas, particularly helpful in judging the portion of skin that has been burned. For the adult, the head represents 9%; each upper extremity 9%; the back of the trunk 18%, and the front 18%; each lower extremity 18%; and the perineum the remaining 1%.
Figure: RULE OF NINES
rule
rule of nines has been found in Taber's Medical Dictionary, the world's best-selling health dictionary with more than 60,000 terms.
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