title: The influence of physical properties and lipid content of bile on the human blood/bile ethanol ratio.
abstract: The relationship between ethanol levels in blood and bile was determined in human postmortem specimens. The influences of several physical properties--surface tension, specific gravity and viscosity--and bile lipid content on the blood/bile ethanol ratio were evaluated. A gas chromatographic direct injection technique was employed to determine the ethanol concentrations in postmortem blood and bile specimens. A positive correlation was established between the levels in the two fluids. No correlation could be found between the blood/bile ethanol ratios and the aforementioned physical properties of bile. Correction of the observed bile ethanol for lipid content had an insignificant effect on the ratio. The average blood/bile ethanol ratio was 1.03 +/- 0.29 (range: 0.32-2.91). The wide range observed makes it undesirable to use bile ethanol concentrations to predict specific blood ethanol concentrations. However, under certain conditions, bile ethanol levels may be used to estimate blood concentrations within a range of values.
mesh_terms: D001646:Bile / Q000032:analysis*; D002849:Chromatography, Gas; D000431:Ethanol / Q000032:analysis* / Q000097:blood; D006801:Humans; D008055:Lipids / Q000032:analysis*
chemical_list: D008055:Lipids; D000431:Ethanol