Can a person have muscular dystrophy with normal CPK?

Yes, a person can have muscular dystrophy with normal creatine phosphokinase (CPK) levels. While elevated CPK levels are commonly associated with muscle damage and dystrophies, some forms of muscular dystrophy may not lead to significant changes in CPK, especially in early stages or less common variants. Diagnosis typically requires a combination of clinical evaluation, family history, genetic testing, and muscle biopsy.