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Prediction of Blood Alcohol Concentrations in Human Subjects; Updating the Widmark Equation

Patricia E. Watson, Ian D. Watson, Richard D. Batt

SUMMARY. Equations are derived for expressing the relationship between alcohol intake and blood alcohol concentration in terms of total body water and the blood water fraction. These equations are more exact than Widmark’s, and if used in conjunction with regression equations to calculate total body water, will give more accurate predictions of BAC.