Figure 5From: Liquid hyper-absorption as a cause of increased DTPA clearance in the cystic fibrosis airway There is no appreciable correlation between transepithelial resistance and DTPA absorption rate. Measurements of TER from individual cell cultures were made using a volt-ohm meter 24 h prior to the addition of 10 μL of Tc-DTPA in PBS; one CF line (n = 12) and four non-CF lines (n = 30).Back to article page