Characterization of the Efficacy of Furosemide Depending on Albumin Function

After centrifugation (10 minutes at 4000 rpm), the plasma is aliquoted and stored at minus 80° C until further analysis. The free as well as the total furosemide concentration is determined by HPLC. In addition to the characterisation of the albumin function by means of the ABiC, these samples can also be used for the determination of the albumin concentration (prerequisite for the determination of the ABiC) and free furosemide concentration as well as for the determination of further parameters relevant for the albumin function.