Renal Glycosuria in Pyelonephritis

Abstract

Standard pediatric nephrology textbooks do not include acute pyelonephritis in the differential diagnosis of renal glycosuria. Recently, we encountered a 9-month-old girl who had fever up≤39.4°C(103°F) for five to six days. On the sixth day of her illness, a Chemstrip urinalysis was performed and demonstrated the presence of 2+ pyuria, 1+ protein, 1+ hematuria, and 4+ glycosuria. A simultaneous blood glucose concentration was 107 mg/ dL. A repeat urinalysis, done 32 hours after a feeding, confirmed the presence of renal glycosuria, a concurrent serum glucose of 129 mg/dL, pyuria, minimal hematuria, and proteinuria.