Hydrogen breath test

This test measures the level of hydrogen gas in air that is exhaled (breathed out). This test is done after drinking a fixed amount of sugar. It is used to evaluate and manage certain intestinal disorders such as lactose intolerance.

Laboratory tests may be done for many reasons. Tests are performed for routine health screenings or if a disease or toxicity is suspected. Lab tests may be used to determine if a medical condition is improving or worsening. Lab tests may also be used to measure the success or failure of a medication or treatment plan. Lab tests may be ordered for professional or legal reasons. You may need this test if you have:

• Bacterial overgrowth syndrome
• Lactose intolerance

Eat a low fiber diet the day before the test.

You will be asked to drink a liquid that contains sugar. Breath samples will be collected in a balloon or bag, and hydrogen levels are measured using special techniques.

The amount of discomfort you feel will depend on many factors, including your sensitivity to pain. Communicate how you are feeling with the person doing the test. Inform the person doing the test if you feel that you cannot continue with the test.

There are no special instructions to follow after this test.

You have the right to help plan your care. To help with this plan, you must learn about your health condition and how it may be treated. You can then discuss treatment options with your caregivers. Work with them to decide what care may be used to treat you. You always have the right to refuse treatment.