
Is a serum creatine kinase level of over 1000 U/L dangerous?
A few days ago, I went for a medical checkup, and the results showed my serum creatine kinase level was over 1000 U/L. This value really startled me. Is my condition dangerous? Could there be any serious issues?

In general, a serum creatine kinase level of over 1000 U/L may be dangerous.
Serum creatine kinase is an enzyme found in the muscles, heart, and brain. When these tissues are damaged, creatine kinase is released into the bloodstream. Therefore, elevated serum creatine kinase levels are often considered markers of muscle or myocardial injury. When serum creatine kinase levels exceed 1000 U/L, this typically indicates serious muscle or heart problems, such as acute myocardial infarction, muscle disorders, or severe trauma. At this point, the elevated creatine kinase level may be significantly dangerous, and failure to treat it promptly could lead to severe consequences.
An elevated serum creatine kinase level alone cannot determine the exact cause. Doctors usually make a comprehensive assessment by combining clinical symptoms, physical signs, and other test results, such as electrocardiogram (ECG), troponin, and imaging studies. If serum creatine kinase levels remain elevated, prompt medical attention is necessary for evaluation and formulation of an appropriate treatment plan by a specialist.
During treatment, patients are advised to rest, avoid strenuous exercise and overexertion, and follow medical advice for regular follow-up examinations.