Creatine kinase (CK) is an enzyme that mainly exists in your heart and skeletal muscle, with small amounts in your brain. The cells in your skeletal muscles, heart muscles or brain release creatine …

Nov 26, 2025 · Your body produces the enzyme creatine kinase (CK) or creatine phosphokinase to keep your muscles functioning properly. Healthcare providers use the CK test to check levels of this …

Jan 4, 2021 · Creatine kinase or creatine phosphokinase is an enzyme chiefly found in the brain, skeletal muscles, and heart. An elevated level of creatine kinase is seen in heart attacks, when the …

This test measures the amount of creatine kinase (CK) in your blood. High CK levels may be a sign of damage or disease in your muscles, heart, or brain. Learn more.

Creatine kinase (CK), also known as creatine phosphokinase (CPK) or phosphocreatine kinase, is an enzyme (EC 2.7.3.2) expressed by various tissues and cell types.

Apr 4, 2021 · Creatine phosphokinase (CPK), also known by the name creatine kinase (CK), is the enzyme that catalyzes the reaction of creatine and adenosine triphosphate (ATP) to phosphocreatine …

Diagnosing and monitoring myopathies or other trauma, toxin, or drug-induced muscle injury. Creatine kinase (CK) is an enzyme that catalyzes the reversible phosphorylation of creatine (Cr) by adenosine …

Aug 17, 2025 · Learn what a CK blood test reveals about muscle and tissue health, and what elevated creatine kinase levels signify.

Dec 16, 2025 · Serum creatine kinase levels (CK) can vary among healthy subjects, even when correcting for muscle mass. Age, gender, race, and physical activity can affect CK.

Creatine kinase levels refer to the amount of the creatine kinase enzyme present in your blood. Also known as CK or CPK (creatine phosphokinase), this enzyme is primarily located in your muscles, …