... monitor of the epithelial lining fluid. Correction of bronchial microdialysis by the arteri-obronchial urea gradient enhances bronchial microdialy-sis, as measured by lactate, by reducing the coefficient ... concentrations of the mole-cules in the epithelial lining fluid. With correction of bronchial microdialysis by the arterio- bronchial urea gradient, the coefficient of variation of FD-4 decreased only slightly, ... Microdialysis AB,Stockholm, Sweden), using the peroxidase methodology.To verify the position of the catheter at the end of the experiment, the microdialysis catheter either was perfusedwith methylene...