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

A. Delayed motor development. Children with muscular dystrophy often experience delayed milestones, such as difficulty walking, running, or climbing stairs. This is due to progressive muscle weakness, which affects motor skill acquisition. B. Lung defects. While respiratory muscle weakness can occur in later stages of muscular dystrophy, congenital lung defects are not a primary characteristic of the condition. Respiratory complications typically arise due to muscle deterioration rather than structural lung defects. C. Scoliosis. Progressive muscle weakness leads to postural instability, increasing the risk of scoliosis (abnormal spinal curvature). This is particularly common in Duchenne muscular dystrophy (DMD) as the muscles supporting the spine weaken. D. Insomnia. Sleep disturbances are not a primary symptom of muscular dystrophy. However, respiratory complications or discomfort in later stages may contribute to sleep issues, but insomnia is not a defining feature. E. Muscle weakness. Progressive muscle weakness is the hallmark of muscular dystrophy. It typically starts in the proximal muscles (hips, thighs, shoulders) and worsens over time, leading to mobility challenges and loss of independence.