Things to ask about in the history:
Pregnancy:
Exposures to drugs or toxins, acute maternal illnesses,
maternal thyroid disorder, gestational diabetes, prenatal ultrasounds,
extent of prenatal care and any other complications
Birth history:
Gestational age, multiple births (e.g. twins) delivery type,
presentation, birth measurements, APGAR scores, birth complications
(e.g. resuscitation needed, time in hospital)
Development:
Thorough review. Be especially wary of 'regressions' in development
Family history:
Any seizures, mental retardation, or other
neurological disorders.