Creatine Kinase (CK)

Routinely elevated in people who train hard. Add it if you want the number in front of you.

Creatine Kinase in the Biomarker Guide — what it is, why it is tested, and what moves the number.

Add-on markers can only be added to venous samples.

Timing

Avoid heavy training for 48 hours. Exercise raises creatine kinase substantially.

Turnaround: the lab reports this test within 24 hours of receiving your sample, counted in working days. Most samples reach them within about 3 days of posting. Full detail on our Turnaround Times page.

We do not interpret results. Not medical advice or a diagnosis.