A 25-year-old obese woman who denies any history of alcohol abuse presents with severe abdominal pain radiating to the back. Laboratory results indicate an increase in serum amylase and lipase, with a marked decrease in calcium. Which of the following likely has caused this condition?
AAbetalipoproteinemia
BCholelithiasis
CCystic fibrosis
DAlcohol
A young boy presents with failure to thrive. Biochemical analysis of a duodenal aspirate after a meal reveals a deficiency of enteropeptidase (enterokinase). Which one of the following digestive enzymes would be affected by this deficiency?
AAmylase
BPepsin
CTrypsin
DLactase
What is the primary effect of GLP-1 on insulin secretion?
AIncreased aldosterone secretion by adrenal
BIncreased PTH secretion
CIncreased insulin secretion from beta-cells of pancreas
DIncreased testosterone secretion from Leydig cells
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