Reference Range
Females 29 - 168 U/L
Males 30 - 200 U/L
CK levels are higher in males than in females, and in black race populations. Exercise, muscle trauma (contact sports, traffic accidents, intramuscular injections, surgery, convulsions, wasp or bee stings, and burns), and drugs such as cholesterol-lowering statins can damage muscle and increase serum CK concentrations.
