A 4-year-old boy is brought to the physician for a follow-up appointment. He is at the 3rd percentile for height and weight and has a history of 3 pneumonias since birth. He was conceived via IVF since his biologic father “had no sperm” in a sample, but sperm were retrieved using percutaneous epididymal sperm aspiration (PESA). Which of the following is most likely to be seen in this patient?
A) Autosomal dominant inheritance
B) Chromosome 5 mutation
C) Decreased unmineralized osteoid
D) Endocrine pancreatic insufficiency
E) Increased ENaC activity
