This assay is performed in our lab to identify mono and di-sugars in the urine of patients suspected of having galactosuria, lactosuria, fructosuria, etc.
To confirm that the excreted sugar is glucose and to exclude pentosuria, fructosuria, sucrosuria, maltosuria, galactosuria, and lactosuria, the glucose oxidase method should be used for all laboratory measurements.
CLD is characterised by severe diarrhoea, abdominal pain, vomiting dehydration, renal tubular acidosis, aminoaciduria, liver damage, lactosuria, cataracts and distension that appear soon after birth when the diet begins to contain lactose.
The results of per oral and per intraduodenal lactose tolerance tests confirmed lactosuria in both.