In the early stages, children are prone to many diseases, allergies, and injuries. And for the diagnosis procedure of your child. A pediatrician may check for things like Excess Spit-Up, Bump on the Head, Sniffles or Rash, Recurring Tummy Pain, Seizure During a High Fever, etc. And the most common tests recommended by pediatricians are Swallow Study, CT Scan, Full- Panel Allergy Test, Cholesterol Test, Brain Imaging, etc.