Neurology & Developmental Nutrition A pediatric guide to understanding cellular iron reserves, myelination, cognition, and child growth. 1. Ferritin vs. Hemoglobin: Understanding the Difference When evaluating a child’s iron status, routine blood tests frequently check Hemoglobin. While hemoglobin reflects the iron actively bound to red blood cells for circulating oxygen transport, Ferritin is the intracellular […]