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Creatine Kinase (CK) is an enzyme found in the heart, brain, and skeletal muscles. It plays a key role in the production of energy within muscle cells. Elevated levels of CK in the blood can indicate muscle damage or stress. This test is commonly used to diagnose or monitor conditions such as:

• Muscle injuries (e.g., from trauma or exercise)
• Heart attacks (elevated CK-MB, a specific form of CK found in the heart muscle)
• Rhabdomyolysis (a condition involving severe muscle breakdown)
• Neurological disorders (e.g., stroke or seizures)

Different forms of CK (CK-MM, CK-MB, and CK-BB) are used to help pinpoint the source of elevated levels, whether muscle, heart, or brain tissue.