Diagnostic tests the doctor may order include: measurements of potassium, (K) creatine kinase,(CK) lactic dehydrogenase (LDH) and pyruvate kinase (PK) and certain antibodies in the blood; muscle tissue biopsy; and electromyogram (EMG).
Finally, electrical stimulation, in conjunction with EMG, can deliver a small amount of electrical current to the muscle to prevent atrophy; it may be performed either by a therapist or at home.
Nerve conduction studies and an electromyogram (EMG) are usually performed together to provide a comprehensive assessment of nerve and muscle function.
Nerve conduction testing may be combined with electromyography (EMG), an electrical test of the muscles.
Electromyography (EMG) is a technique that records the electrical activity of skeletal muscles.