Assessment of new radioimmunoassay kit for determining urinary albumin at low concentrations: comparison with radial immunodiffusion.
The assay characteristics of a new radioimmunoassay kit for determining urinary albumin at low concentrations were studied. The sensitivity for urinary albumin was 2 mg/l, the analytical range 2 to 40 mg/l, and interassay coefficient of variation less than 12%. In a method comparison study entailing diabetic urine samples covering an albumin concentration of 2 to 150 mg/l the kit compared adequately with radial immunodiffusion (mean difference between methods = 2 mg/l; residual standard deviation = 4.6 mg/l), absolute variation between methods increasing with the concentration. The kit required much less skill than radial immunodiffusion but its capital and running cost were higher.
D000419:Albuminuria / Q000175:diagnosis*; D003920:Diabetes Mellitus / Q000652:urine; D003928:Diabetic Nephropathies / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D006801:Humans; D005779:Immunodiffusion; D011863:Radioimmunoassay / Q000379:methods*; D011933:Reagent Kits, Diagnostic
D011933:Reagent Kits, Diagnostic