Imperial Collage Healthcare

Reducing substances (urine)


Test Background
Urinary reducing substances include glucose, fructose, galactose, lactose, pentose and maltose, as well as amino acids, cysteine, tyrosine, homogentisic acid, ketone bodies, ascorbic acid and many drugs. A positive screen for reducing substances in the urine should be followed by sugar chromatography to identify specific carbohydrates present and provide a quantitative estimation.


Clinical Indications
Neonatal/infantile presentation of generalised failure to thrive symptomology, chronic diarrhoea, hepatic dysfunction and developmental delay (often global)


Reference Range

See report


Sample Required
Random urine in universal container


Sample Volume
5 mL


Turnaround Time
1 week


Notes

A positive screen for reducing substances in the urine should be followed by sugar chromatography to identify specific carbohydrates present and provide a qualitative estimation.

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