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 · What is elevated creatine kinase? Creatine kinase or creatine phosphokinase is an enzyme chiefly found in the brain, skeletal muscles, and heart. An elevated level of creatine kinase is …

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.

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

Learn about creatine kinase levels, their role in muscle and heart health, and what high or low CK levels indicate. Understand CK tests, causes of elevated CK, and when to seek medical advice.

Feb 15, 2026 · CK or creatine kinase is an enzyme that helps produce energy in muscles. Enzymes are substances that help speed up chemical reactions in the body.

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.

CK is a type of protein. The muscle cells in your body need CK to function. Levels of CK can rise after a heart attack, skeletal muscle injury, or strenuous exercise. They can also go up after drinking too …