The nurse is assessing a 4-month-old suspected of having cerebral palsy (CP). Upon initial interview, which of the following statements made by the mother would indicate that the infant may have CP?
• Hypotonia is an early manifestation of CP. The infant should be able to support its head by age 4 months.
• Infants with CP may have an irregular posture, muscle stiffness, and spasticity. Arching of the back and hypertonicity in the extremities is commonly seen.
• Sitting up or rolling is not expected at age 4 months. By age 6 months, the infant should be able to roll over. Sitting up without support also begins around 6 months.
• Tilting of the hip is an indication of hip dysplasia.