- Blood chemistry (see chem-20) shows increased blood levels of creatine phosphokinase (CPK), potassium, uric acid, phosphate.
-
Myoglobin in the urine is elevated.
-
Muscle biopsy using an in vitro contracture test may show abnormal results in response to certain drugs such as caffeine and halothane (an anesthetic).
- Muscle biopsy may show abnormal muscle, such as central cores, in some types.
- Genetic testing such as ryanodine receptor (RYR1) may show gene abnormalities.
- Phosphorus magnetic resonance spectroscopy, a research test, may show abnormal muscle function.
|
