Q. A 5-year-old boy is brought to the pediatric clinic due to concerns about his growth and development. His parents are particularly worried about his distinctive facial features that seem at odds with his petite body stature. The boy has experienced recurrent episodes of hypoglycemia, especially occurring in the early morning. A physical examination of the boy reveals significant hepatomegaly and renomegaly, contributing to notable abdominal distension. Additionally, the parents report the boy has recently started complaining about joint discomfort. Considering the patient's symptoms and signs, the physician suspects a metabolic disorder involving glycogen storage and orders a battery of laboratory tests. Which laboratory finding would be most consistent with the suspected diagnosis in this patient?