Pronunciation: symbol, D, followed by subscripts indicating location and chemical species
Definition: the amount of oxygen taken up by pulmonary capillary blood per minute per unit average oxygen pressure gradient between alveolar gas and pulmonary capillary blood; units are: ml/min/mm Hg; also applied to other gases such as carbon monoxide, which is used in the standard clinical measure of diffusing capacity.
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Examples: glitazone, GI cocktail, etc.