Moderate
Serum creatine kinase-3 (CK-3) is elevated in_______________?
Correct answer: A. Muscular dystrophy
- A. Muscular dystrophy
- B. Myocardial infarction
- C. Alcoholic cirrhosis
- D. Brain tumours
Explanation
CK-3 corresponds mainly to the CK-MM isoenzyme found in skeletal muscle, so it rises in muscular dystrophy and other skeletal-muscle injuries. Myocardial infarction mainly elevates CK-MB, while brain injury involves CK-BB.
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