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).
Glucose-6-phosphate dehydrogenase (G6PD) deficiency-A sex-linked hereditary disorder in which the body lacks an enzyme that normally protects red blood cells from toxic chemicals.
They include deficiencies of myophosphorylase (McArdle's disease), phosphorylase b kinase, phosphofructokinase, phosphoglycerate kinase, and lactate dehydrogenase.
A blood test that measures levels of the enzyme lactate dehydrogenase (LDH) can help predict the likelihood of a specific patient's survival.
