A nurse is assessing a child who has been diagnosed with muscular dystrophy. Which of the following assessment findings should the nurse expect? (Select All that Apply.)

A. Delayed motor development: Muscular dystrophy is characterized by progressive muscle degeneration that often presents in early childhood. Delayed milestones such as late walking, difficulty running, or frequent falls are common early assessment findings. B. Lung defects: Progressive weakness of respiratory muscles can impair ventilation and cough effectiveness. Over time, this can lead to restrictive lung disease, recurrent respiratory infections, and decreased pulmonary function. C. Scoliosis: Weakness of trunk and paraspinal muscles contributes to abnormal spinal curvature. As muscle imbalance progresses, scoliosis commonly develops and can further compromise respiratory function. D. Insomnia: Sleep disturbances are not a defining or expected manifestation of muscular dystrophy. While fatigue may occur, insomnia is not a characteristic assessment finding related to the disease process itself. E. Muscle weakness: Progressive, symmetrical muscle weakness is the hallmark feature of muscular dystrophy. It typically begins in proximal muscles and worsens over time, significantly affecting mobility and functional ability.