Question

Impaired intestinal absorption of 

A. Iron occurs frequently following removal of most of the stomach. 

B. Iodide leads to a reduction in size of the thyroid gland. 

C. Water occurs in infants who cannot digest disaccharides. 

D. Calcium may occur following removal of the terminal ileum. 

E. Bile salts may occur following removal of the terminal ileum.

Answer 1

A. True Due to loss of gastric acid which reduces ferric to the ferrous iron, the form in which it is absorbed. Another problem affecting iron absorption is rapid intestinal transit. 

B. False The size increases to cause ‘goitre’ due to increased TSH stimulation. 

C. True The unabsorbed disaccharides such as lactose cause osmotic diarrhoea. 

D. False Calcium is absorbed mainly in the duodenum. 

E. True The terminal ileum is the main site of bile salt absorption.