A patient is having a creatine kinase (CK) level drawn. For which health problem would the nurse expect this level to be elevated?
1. juvenile rheumatoid arthritis
2. gout
3. muscle disease
4. bone tumors
Correct Answer: 3
CK (the isoenzyme CK-MM) is elevated in muscle trauma and muscle disease. Juvenile rheumatoid arthritis is a systemic disease process that affects the body's joints and other systems; CK levels will not assist in its diagnosis. Uric acid levels are used to diagnose gout. The presence of bone tumors would be identified by radiological testing.
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