About This Test
The Creatine Phosphokinase (CPK) Test is a specialised blood test that measures levels of the enzyme CPK, which is found in the heart, brain, and skeletal mu... Read more
The Creatine Phosphokinase (CPK) Test is a specialised blood test that measures levels of the enzyme CPK, which is found in the heart, brain, and skeletal muscles. CPK is released into the bloodstream when muscle tissues are damaged due to physical trauma, strenuous exercise, or medical conditions such as muscular dystrophy, heart attack, or myositis. Doctors may order a CPK test for patients with muscular pain or weakness, chest discomfort, or after suspected cardiac events. Results can help differentiate between muscle, heart, or brain injury based on which CPK subtype is elevated: CPK-MB (heart), CPK-MM (skeletal muscle), or CPK-BB (brain). The test helps diagnose heart attacks, monitor treatment progress, and distinguish between various muscle diseases. Additionally, certain medications and infections can also raise CPK levels, so it’s essential to provide a complete medical history before testing. Timely CPK screening helps guide therapy decisions, prevent progression, and track muscle health during recovery.
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