A member asked:

What can be the cause of low serum creatine kinase? level is 26 iu/l?

6 doctors weighed in across 2 answers
Dr. Carrie Cannon answered

Specializes in Family Medicine

Low CPK: Any cause of inactivity and reduced muscle mass, found in connective tissue diseases such as rheumatoid arthritis and systemic lupus erythematosis. http://www.clinchem.org/content/44/5/905.full

Answered 12/13/2018

3.8k views

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Means nothing: Reference ranges are set so that several percent of healthies fall outside on either end. Stop worrying. Ask your physician about what kind of aerobic fitness would be right for you.

Answered 11/30/2017

3.2k views

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