False-negative serum protein electrophoresis in a sample with an IgM monoclonal protein by semiautomated gel electrophoresis.


To the Editor: In a recent report, Keren et al. (1 ) described a case in which the Sebia semiautomated electrophoresis method failed to demonstrate proteinuria in a 50-fold concentrated urine sample despite the presence of 2 g/24 h total protein. The reason for this failure was attributed to the presence of debris associated with cellular elements that… (More)

1 Figure or Table


  • Presentations referencing similar topics