A formerly preterm infant who had surgery for necrotizing enterocolitis is now 6 months old and has short bowel syndrome. He is unable to absorb most nutrients taken by mouth and is totally dependent on parenteral nutrition (PN), which he receives via a Broviac catheter. The clinic nurse following this infant is aware that this infant should be closely observed for the development of:
a. Gastroesophageal reflux (GER)
b. Chronic diarrhea
c. Cholestasis
d. Failure to thrive