Several recent commentaries have been concerned primarily with the use of surface area of the body as a means of computing parenteral fluid dosages. Since there is, fortunately, a reasonably wide latitude of bodily homeostatic mechanisms, it becomes largely a matter of personal preference whether one utilizes surface area to estimate initial dosages or some other scheme to apply a corrective factor to weight-age relationships.
There exists another more profound facet to this issue, namely the relationship, if any, of surface area of the body to such physiologic variables as cardiac output, oxygen consumption, renal functioin, etc. It seems logical to separate three areas for discussion.
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