Imperial Collage Healthcare

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Reducing substances (urine)


Lab Code : REDU


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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