In providing the Narre Warren hydrogen breath test, we remain as the most qualified and most  experienced. This diagnostic tool is used to measure hydrogen found in the  breath for the purpose of diagnosing a number of conditions that result in gastrointestinal symptoms. These  conditions include: 

I. Lack of normal digestion of dietary sugar 

The common type of sugar that is often poorly digested is lactose, found in milk. If you are  not able to properly digest lactose then you are considered lactose intolerant.  Other sugars that may be tested include fructose, sucrose and sorbitol. 

II. Small Bowel Bacterial overgrowth 

This condition is when a number of colonic bacteria, than normal, are found in the small  bowel/small intestine. 

III. Rapid food passage through the small bowel/small intestine 

It is important to note that the three conditions can result in flatulence, diarrhea, and abdominal pain among other conditions. 

How the Narre Warren hydrogen breath test works 

In the human body only anaerobic bacteria located in the colon are capable of generating  hydrogen. The hydrogen is produced when the bacteria are exposed to food that is not absorbed especially carbohydrates 

and sugars (but not fats or proteins). Usually, the amount of hydrogen produced

in the colon is small in quantity and quantity tends to increase often when

there is a problem with food digestion/absorption in the small bowel/small

intestine. This would lead to more unabsorbed food reaching the colon.

Furthermore, when the colon bacteria relocate into the small bowel,in a condition described  as small bowel bacterial overgrowth, hydrogen in large amounts may also be  produced. In such a situation, the bacteria usually come into contact with food  that has not been fully digested and absorbed in the small bowel/small intestine. 

In conclusion, consequently, the bacteria produced hydrogen in the colon or in the small  bowel/small intestine come into contact by the blood that is flowing through the colon and small intestine/small bowel wall. The blood that contains blood  subsequently moves to the lungs from where the gas is released through exhaling  for it to be measured by the hydrogen breath test.