title: Abnormal theophylline levels in plasma by fluorescence polarization immunoassay in patients with renal disease.
abstract: Fluorescence polarization immunoassay (FPIA) was compared with high-performance liquid chromatography (HPLC) in the evaluation of serum from uremic patients. Serum specimens from uremic patients demonstrated significantly higher theophylline levels by FPIA than by HPLC.
mesh_terms: D001806:Blood Urea Nitrogen; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003401:Creatine / Q000097:blood; D005454:Fluorescence Polarization / Q000379:methods; D006801:Humans; D011863:Radioimmunoassay / Q000379:methods; D013806:Theophylline / Q000097:blood*; D014511:Uremia / Q000097:blood*
chemical_list: D013806:Theophylline; D003401:Creatine