A patient's enteral feedings have been determined to be too concentrated based on the patient's development of dumping syndrome. What physiologic phenomenon caused this patient's complication of enteral feeding?
A) Increased gastric secretion of HCl and gastrin because of high osmolality of feeds
B) Entry of large amounts of water into the small intestine because of osmotic pressure
C) Mucosal irritation of the stomach and small intestine by the high concentration of the feed
D) Acid–base imbalance resulting from the high volume of solutes in the feed
Ans: B
Feedback:
When a concentrated solution of high osmolality entering the intestines is taken in quickly or in large amounts, water moves rapidly into the intestinal lumen from fluid surrounding the organs and the vascular compartment. This results in dumping syndrome. Dumping syndrome is not the result of changes in HCl or gastrin levels. It is not caused by an acid–base imbalance or direct irritation of the GI mucosa.
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