]> 2026-07-31T12:14:30+00:00 WBR0467 0 en Increase in fluid secretion in the small bowel lumen due to decreased absorption of electrolytes with stool osmolal gap < 50 mOsm/kg. Fecal fat output exceeding the absorptive capacity of the intestine Fatty diarrhea is characterized by fecal fat output exceeding the absorptive capacity of the intestine. Active solutes that obligate water retention in the intestinal lumen Enterocyte damage that causes mucosal disruption and abnormal absorption Inflammatory diarrhea is characterized by enterocyte damage, which causes mucosal disruption and abnormal absorption. Altered small intestinal motor activity Motility disorders may cause diarrhea. Motility disorders are characterized by a limited time for appropriate digestion to occur. They are common in patients with hyperthyroidism. Biochemistry A 6-year-old European boy is brought to the physician's office with complaints of abdominal pain, bloating, and explosive diarrhea following milk ingestion. The patient's mother explains that he used to drink milk during infancy, and his symptoms are relatively new. Breath hydrogen levels are elevated, and jejunal biopsies demonstrate normal gastrointestinal (GI) mucosa. Which of the following most likely characterizes the type of diarrhea in this patient? C Gastrointestinal 2020-10-28T00:40:44Z 2459150.528287 WBR0467