Which statement accurately describes Becker muscular dystrophy?

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Prepare for the Neuromuscular Interventions Test with flashcards and multiple-choice questions. Each question includes hints and explanations. Get ready to ace your exam!

Multiple Choice

Which statement accurately describes Becker muscular dystrophy?

Explanation:
Becker muscular dystrophy is caused by mutations in the dystrophin gene that produce partially functional dystrophin. This leads to progressive proximal muscle weakness that typically begins in adolescence or early adulthood, not in infancy. At the same time, the heart relies on dystrophin for membrane stability, so even with some residual dystrophin, cardiac muscle is often affected. Dilated cardiomyopathy and arrhythmias are common as the condition progresses, making cardiac involvement a frequent and important concern in Becker muscular dystrophy. So the statement that cardiac involvement is common accurately reflects the disease pattern.

Becker muscular dystrophy is caused by mutations in the dystrophin gene that produce partially functional dystrophin. This leads to progressive proximal muscle weakness that typically begins in adolescence or early adulthood, not in infancy. At the same time, the heart relies on dystrophin for membrane stability, so even with some residual dystrophin, cardiac muscle is often affected. Dilated cardiomyopathy and arrhythmias are common as the condition progresses, making cardiac involvement a frequent and important concern in Becker muscular dystrophy. So the statement that cardiac involvement is common accurately reflects the disease pattern.

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