When a newborn infant is fed, the most likely cause of regurgitation is:
a. Placing the infant in a prone position following a feeding.
b. The gastrocolic reflex.
c. An underdeveloped pyloric sphincter.
d. A relaxed cardiac sphincter.
D
The underlying cause of newborn regurgitation is a relaxed cardiac sphincter.
The infant should be placed in a supine position.
The gastrocolic reflex increases intestinal peristalsis after the stomach fills.
The pyloric sphincter goes from the stomach to the intestines.
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