The nurse is preparing to admit a 10-year-old child with Duchenne muscular dystrophy. What clinical features of Duchenne muscular dystrophy should the nurse recognize? (Select all that apply.)
a. Calf muscle hypertrophy
b. Late onset, usually between 6 and 8 years of age
c. Progressive muscular weakness, wasting, and contractures
d. Loss of independent ambulation by 9 to 12 years of age
e. Slowly progressive, generalized weakness during adolescence
ANS: A, C, D, E
Clinical features of Duchenne muscular dystrophy include calf muscle hypertrophy; progressive muscular weakness; wasting and contractures; loss of independent ambulation by 9 to 12 years of age; and slowly progressive, generalized weakness during adolescence. The onset is early, not late, usually between 3 and 5 years of age.
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