A parent brings a 4-month-old to the clinic for a regular well visit and expresses concern that the infant is not developing appropriately. Which findings in the infant would indicate the need for...

A parent brings a 4-month-old to the clinic for a regular well visit and expresses concern that the infant is not developing appropriately. Which findings in the infant would indicate the need for further developmental screening?

1. Has no interest in peek-a-boo games.

2. Does not turn front to back.