A 5-day-old boy is brought to the obstetrician following bleeding from the umbilical area. He was born at home-born. Physical examination shows a small amount of fresh blood oozing from his umbilicus. There are small red spots seen on the conjunctivae bilaterally. He is breastfeeding normally. Vitals are normal. He is not in acute distress. Which of the following is the most likely explanation for these findings?
Acceleration-deceleration injury
Decreased hydroxylation of proline residues
Decreased intestinal ion absorption
Decreased post-translational carboxylation
Impaired folate synthesis
