Carbohydrates malabsorption is detected by:: (A) Breath hydrogen test, (B) Nitrogen breath test, (C) Fecal nitrogen, (D) Rapid urease test
Answer is A. Breath hydrogen test: used to identify the specific carbohydrate (lactose, sucrose, fructose, or glucose) that is malabsorbed. Ex: Lactose, if not absorbed in the small intestine, reaches the colon, where it is fermented to sho-chain organic acids, releasing hydrogen that is detected in the lactose breath test Rapid urease test: for H. pylori