Creatinine kinase

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Creatinine kinase is an enzyme produced by muscle cells and to a lesser extent, the brain, photoreceptor cells of the retina, hair cells of the inner ear, spermatozoa and smooth muscle,

Normal levels in dogs is 14 - 120 units/L.

Elevated levels of CK in dogs can be seen in a number of conditions such as:

In dogs with uroabdomen, diagnostic peritoneal lavage and abdominocentesis usually shows a creatinine level > 2:1 with serum creatinine[1].


  1. Connally HE (2003) Cytology and fluid analysis of the acute abdomen. Clin Tech Small Anim Pract 18(1):39-44