Breath Tests

Lactose intolerance breath test or Hydrogen Breath test

This test measures hydrogen levels in the breath following ingestion of lactose (milk sugar). Lactose, which is a simple sugar, is normally broken down and absorbed so none of it reaches the colon. Therefore, little or no increase in breath hydrogen of a healthy person occurs after eating it. If lactose reaches the colon because it has not been properly digested, the bacteria in the gut ferment it and hydrogen is produced. This is reflected a few minutes later by an increase in breath hydrogen.

Test and Preparation

This is a non-invasive test done at Australian Breath Analysis Laboratory ABAL. It is necessary to have a referral from your doctor. ABAL will not accept self-referrals from patients. Then please make an appointment for the test by ringing the laboratory on 02 9315 5966.

The patient is required to fast for 12 hours prior to the test. First the normal fasting level of breath hydrogen is measured. After the patient has drunk the lactose in water solution, further breath samples are at hourly intervals for 3 hours.

Physicians

Free Lactose Breath Test Kits can be ordered by calling 02 9315 5966 or using this online form.

Patients

Breath Test Kits can be ordered by calling 02 9315 5966 or using this online form.