Our clinic does use weight in the caculation of predicted FEV1. Lauren, if this is def incorrect then please take a look at your published articles where u stated weight was used to predict FEV1s. "Results are compared to a predicted normal range for the patient's height, weight, and age." <a target=_blank class=ftalternatingbarlinklarge href="http://www.associatedcontent.com/article/259177/understanding_spirometry.html?page=3
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