<prompt> Carbohydrates malabsorption is detected by:Breath hydrogen testNitrogen breath testFecal nitrogenRapid urease test  <response>: 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 