Hydrogen breath tests help to diagnose either intolerance to sugars or small intestinal bacterial overgrowth (SIBO). The test measures how the amount of hydrogen present in your breath changes after ...

Compared to the colon, the human small intestine usually contains fewer bacteria. Bacterial overgrowth can occur in the small intestine due to functional or structural disorders of the ...

Breath testing involves the collection of breath samples to measure specific gases in the exhaled air and may be used to diagnose several different gastrointestinal conditions. Despite similar steps ...

Hydrogen breath tests are a diagnostic tool that doctors use to identify small intestinal bacterial overgrowth (SIBO), lactose intolerance, and other digestive conditions. The test measures the amount ...

Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...

A spirometry is a pulmonary function test that measures how much air a person breathes out, and how quickly. Pulmonary function tests measure how well the lungs are working. It is an office-based ...