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Hydrogen Breath Test for Small Bowel Bacterial Overgrowth

Source Breath
Mnemonic HBT
Specimen Requirements Collections performed at GI Clinic at FMC.
To book a patient phone the GI Clinic at 403-210-9325 and select the appropriate referring Gastroenterologist.
Specimen Handling

Specimens must be kept at room temperature.

Ship as soon as possible to Analytical Toxicology at the DSC.

Additional Information

Patient instructions for Hydrogen Breath Test for SMALL BOWEL BACTERIAL OVERGROWTH will be provided at the time of booking.

For Hydrogen Breath Test for LACTOSE INTOLERANCE see Hydrogen Breath Test for Lactose Intolerance.


The drink provided for this test includes the following ingredients:

  • Glucose
  • Citric acid
  • FD&C Yellow #6
  • Natural flavours
  • Pure water
  • Sodium benzoate
Testing Location Analytical Toxicology
Testing Frequency Testing is completed within 14 days of collection
Alternate Name(s) Breath Hydrogen for Small Bowel Bacterial Overgrowth
Reference Interval