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Investigations

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

For myopathies, an accurate family, drug and social history is vital.

Biochemical investigations:

  • calcium, potassium, magnesium
  • glucose, HbA1c
  • thyroxine and cortisol levels
  • creatine kinase: elevated levels signify muscle damage
  • ESR: raised in polymyalgia rheumatica
  • electromyography and muscle biopsy

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