Austin Pathology

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Faecal Reducing Substances

Ordering Information

Please note, this test is only available for children under the age of 4. For patients greater than 4 years of age, the Hydrogen Breath Test is recommended for the investigation of sugar malabsorption.

For children between the age of 2 and 4, The Royal Children's Hospital suggest a Hydrogen Breath Test to investigate for malabsorption of sugars.

Cerner Test Name
Faecal Reducing Substances
Referred Test
MBS Number
Faecal Pot (Brown topped)
Collection Instructions
Collect on ice
Additional Collection Instructions
  • Please collect a DEDICATED faecal pot for this test.
  • Label the faecal container with patient identification details.
  • Collect a small amount of faeces into the brown topped container.
  • Put the container into a small plastic bag and freeze immediately.
  • Do not let sample defrost while transporting it to the laboratory or collection centre.
Minimum Adult Volume
Minimum Paediatric Volume
Monday - Friday
Reference Interval


Test Code
Container ID
Storage Instructions
Store frozen at -20°C
Transport Instructions
Transport frozen
Laboratory Notes

RCH lab uses the fluid/liquid component of faeces for analysis.

DEDICATED frozen faecal pot is required for this test. If sample is not frozen, and no dedicated pot has been received. Sample should be split, and the portion for Reducing Substances should be frozen.

Instructions for: Metropolitan & Regional Specimen Receptions

  • Specimen is stable as follows:
    • 6 hours at room temperature
    • 3 days if refrigerated at 4°C
  • DO NOT REJECT SAMPLES IF THEY ARE NOT RECEIVED FROZEN. If specimen meets the timeframe above, freeze as soon as possible and note the time of freezing.

Instructions for: Heidelberg Sendaways Department

  • Forward to the referral laboratory frozen
External Laboratory
Biochemistry, Royal Children's Hospital