What is a lactulose hydrogen breath test?
The lactulose hydrogen breath test is used to identify abnormal growth of bacteria in the intestine. You will be asked to breathe into a breath collection device and your breath will be collected and analyzed for the presence of hydrogen. Normally, small amounts of bacteria are found in the intestine. If there is a significant increase in the amount of bacteria, food and nutrients are not absorbed properly. Bacterial overgrowth can result from a slow transit of food through the bowels or from certain medications. Symptoms may include abdominal pain, bloating, gas, and diarrhea. What are the possible complications with this test? Complications of a lactulose hydrogen breath test are rare. How do I prepare for this test? • Antibiotics must be completed 2 weeks prior to this test. • Avoid slowly digesting foods (bran, coarse breads, nuts, beans and vegetables) 1 day before the test. • Do not have anything to eat 12 hours before you exam. You may only have water before the test. • On the d
