[mass noun] The presence of lactose in the urine.
- ‘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.’
- ‘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.’
- ‘The results of per oral and per intraduodenal lactose tolerance tests confirmed lactosuria in both.’
- ‘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.’