Soru

A 6-month-old boy is brought to the clinic for a routine well-child visit. He was born at 28 weeks gestation via emergency cesarean delivery due to severe maternal preeclampsia. He spent 6 weeks in the neonatal intensive care unit before being discharged home. His parents are concerned about his motor development because he does not roll over from his stomach to his back and cannot sit up, even with support. On physical examination, his weight, length, and head circumference are tracking appropriately on the premature infant growth chart. When placed in a prone position, he holds his head up steadily at a 45-degree angle. He consistently brings both hands to the midline and tracks objects past the midline. He coos and exhibits a social smile when interacting with the examiner but does not babble or transfer objects from hand to hand. Neurological examination reveals normal muscle tone and symmetric reflexes. Which of the following is the most appropriate next step in management?