Breath test
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- Breathalyzer - By far the most common usage of this term relates to the legal breath test to determine if a person is driving under the influence of alcohol.
- Hydrogen breath test - However, it is becoming more and more common for people to undertake a medical test for clinical diagnosis of dietary disabilities such as fructose intolerance, fructose malabsorption, lactose intolerance and lactulose intolerance.
- The presence of Helicobacter pylori in peptic ulcer disease can be tested with a urea breath test.