Patterns of Proteinuria and Circulating Immune Complexes in Febrile Patients

Abstract
Circulating immune complexes (CIC) were detected in 8 of 15 patients with fever due to non-renal infections. Elevated urinary albumin and .beta.-2-microglobulin excretion rates were found during the febrile period compared to the levels 2 days after normalization of the temperature. No relationship could be demonstrated between CIC and the excretion rates of albumin and .beta.-2-microglobulin or the albumin/.beta.-2-microglobulin ratio. The hypothesis that the glomerular type of proteinuria is caused by immune complexes was not confirmed.