symptoms include muscle weakness, cramps, stiffness, and tetany.

Diagnosis

The evaluation of a suspected myopathy combines clinical assessment with laboratory, electrophysiological, imaging, histological and genetic testing, since no single test is diagnostic for all forms.

Laboratory tests

Serum creatine kinase (CK) is the most commonly used biomarker of muscle injury, and is often supplemented by aldolase, lactate dehydrogenase

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