Hydrogen/Methane Breath Test Make an Appointment Patient Education Find a Doctor Download Patient Education The hydrogen/methane breath test is a test that uses the measurement of hydrogen in the breath to diagnose several conditions that cause gastrointestinal symptoms. Download PDF: Hydrogen/Methane Breath Test Download PDF: Hydrogen/Methane Breath Test View more information on Hydrogen/Methane Breath Test National Jewish Health authors free downloadable patient education materials to provide you and your family the information and tools to help manage your disease. They include Understanding Booklets, Med Facts, Test Facts, Medication handouts and more. Search Free Education Materials