Single and double voided urine testing: A comparison with blood glucose monitoring in insulin‐dependent diabetics

Abstract

AbstractIn order to assess the degree of correlation between glycosuria in both single and double voided urine specimens and simultaneous capillary blood glucose measurements, an outpatient study on nine adult insulin‐dependent diabetics collected 778 paired blood and urine measurements. Although low blood glucose readings were usually associated with negative glycosuria, there was considerable variation both within the group and individual patients.Additional data was collected during the routine care of 83 diabetic children at 2 educational holidays. Paired urine and blood measurements were obtained on 1,236 occasions, on 362 of which double voiding was attempted. These data also showed considerable scatter and poor overall correlation between single voided urine and capillary blood glucose, and no improvement with double voiding.In the adults, the correlation was not affected by analysis of morning versus evening results, by once or twice‐daily insulin regimens, or by the method used for urine testing.The conclusions are: Urine glucose measurements are poor predictors of prevailing blood glucose levels. Double voiding of urine for urinalysis appears to have no additional advantages over single voiding.