Quiz 1 Semester 3

A newborn with severe diarrhea is found to have an inherited defect in a glucose transporter resulting in glucose/galactose malabsorption, necessitating a glucose and galactose-free diet. Which of the following is the transport protein responsible for entry of glucose into the intestinal enterocyte?

A 43-year-old woman presents with dysphagia to solids and liquids, bland regurgitation. During this time, she has lost about 20 pounds. The patient is scheduled for esophageal imaging and motility testing. The esophagogram during a barium swallow shows a dilated esophagus with an area of distal stenosis and esophageal manometry tracings during a wet swallow shows a high lower esophageal sphincter (LES) opening pressure and uncoordinated peristalsis. These findings are consistent with which of the following diagnoses?

 

A 70-year-old woman presents with abdominal pain, microcytic anemia, and weight loss. Colonoscopy with biopsy confirms colon cancer. Which of the following best describes colonic function?

A 34-year-old man with long-standing gastro-oesophageal reflux disease is reviewed in clinic. He has recently switched from ranitidine to omeprazole. What is the main benefit of omeprazole compared to ranitidine?

Intolerance to table sugar ingestion could be caused from the deficiency of: