Creatine Kinase

Background:

Investigation of muscle disease, including rhabdomyolysis, myositis, or muscle dystrophy

Common causes of a raised CK include

• exercise
• statins
• hypothyroidism
• repeated venepuncture
• drugs

Persistently elevated CK levels without apparent cause may be due to formation of CK-immune complexes (Macro-CK). Please contact the Duty Biochemist to discuss further investigation

Reference ranges:

Results outside the reference range do not necessarily indicate disease. Similarly, results within the reference range do not preclude abnormality. Please contact the Duty Biochemist for discussion of individual patient results.

Other Comments:

For more information, please see the following: Creatine kinase - Lab Tests Online