Mobile Site ›

Test ID: CK
Creatine Kinase (CK), Serum

Back to Pediatric Index | Back to list | More information

Secondary ID A test code used for billing and in test definitions created prior to November 2011


Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.


6-11 years: 150-499 U/L

12-17 years: 94-499 U/L

> or =18 years: 52-336 U/L


6-7 years: 134-391 U/L

8-14 years: 91-391 U/L

15-17 years: 53-269 U/L

> or =18 years: 38-176 U/L

Reference values have not been established for patients that are less than 6 years of age.

Note: Strenuous exercise or intramuscular injections may cause transient elevation of CK.