Your doctor may ask you to get a CPK test if you have symptoms like: Usually, the normal range of CPK levels falls anywhere between 10 to 120 micrograms per liter (mcg/l). This range can vary from ...

Normal CPK levels vary by age, gender, and race. Each laboratory may have minor differences in reference ranges, as well. In general, a CPK level of approximately 200 units per liter (U/L ...