Skip to content
Our Cambridge clinic is now open. Book now!
Our Cambridge clinic is now open. Book now!

Creatine Kinase (CK) - description and reference ranges

What is it?

Creatine Kinase (CK) is an enzyme protein, mostly found in your heart tissue, skeletal muscles and in the brain. Appropriate levels of CK are essential for healthy muscle work in the heart and body movement.

Reference ranges

If your indicative Creatine Kinase level is lower than the reference range for our laboratory:

Low CK levels in blood are normal and are not usually a cause for concern.

Your can discuss these results with your GP.

If your indicative Creatine Kinase level is higher than the reference range for our laboratory:

Elevated levels of CK can point to an injury or disease of the muscles, heart, or brain, specifically muscular dystrophy, inflammation of skeletal or heart muscles, strokes or brain injuries.

Please discuss this result with your GP.

Quick test finder

Quick test finder

Find what you need in under 30 seconds with our (very clever!) test finder. We offer a huge range of markers all a few clicks away, as well as fastest turnaround times.

Find your test

You might also like to read

  • Sunshine important for Vitamin D
    Dr. Adam Staten

    Vitamin D: Micronutrient, Mega Important

    Despite the widespread prevalence of vitamin D deficiency, it is easily overlooked. The symptoms of vitamin D deficiency, particularly if the deficiency is mild, are often vague and difficult to define. Frequently the feeling of malaise or lethargy that may be caused by low vitamin D levels are attributed to something else, or just blamed on the general stresses of life. This is a real shame because replacing vitamin D is very straightforward.
    Read now
  • Stroke signs to look out for
    Dr. Mike Forsythe

    Stroke: Types, Causes, Symptoms & Prevention

    A Cerebrovascular Event (CVA), or stroke, as it’s more commonly known, is a medical emergency. It occurs when blood flow to a part of the brain is reduced or interrupted, depriving brain tissue of oxygen. This can result in brain...

    Read now
  • man with coeliac disease
    Dr. Adam Staten

    Coeliac Disease: All you need to know

    What is Coeliac Disease? Coeliac Disease, also known as Celiac Disease, is a genetically determined, autoimmune condition that causes inflammation within the gut following exposure to gluten in the diet. As a genetic condition, it can run in families and...

    Read now