Is a creatine kinase level of over 9000 dangerous?

A creatine kinase level of over 9000 is a relatively dangerous condition.

Under normal circumstances, the normal range for creatine kinase in males is 50-310 U/L, and for females it is 40-200 U/L. Creatine kinase is a muscle enzyme whose serum concentration significantly increases during myocardial infarction, muscle diseases, or injuries. When creatine kinase levels reach above 9000 U/L, it indicates the presence of serious health issues, possibly signaling myocardial infarction, rhabdomyolysis, or other severe muscle disorders. Elevated creatine kinase levels can lead to kidney damage, as muscle breakdown products may block the renal tubules, causing acute kidney injury. Additionally, the release of contents such as myoglobin into the bloodstream can block the renal tubules, leading to acute renal failure, manifested as oliguria, anuria, edema, and other symptoms, which can be life-threatening in severe cases. Furthermore, hyperkalemia may also occur, causing cardiac problems such as arrhythmias, further increasing the level of danger. Therefore, when abnormally elevated creatine kinase levels are detected, immediate medical attention should be sought to prevent potential complications.