Test Code 1001
Test Details
Creatine Kinase (CK)
CK is an enzyme that is found in muscle, heart, and brain tissues.
Methodology
Enzymatic
Patient Preparation
None
Preferred Specimen
1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)
Alternate Specimen
1.0 mL EDTA plasma (0.5 mL minimum) collected in plasma separator tube (Pearl Top)
Transport Temperature
Refrigerated (ship on frozen cold packs)
Stability
Refrigerated: 7 days
Lab Values
Creatine Kinase (CK)
Male
- Optimal: <300 U/L
- Borderline: 300-1500 U/L
- Increased Risk: >1500 U/L
Female
- Optimal: <200 U/L
- Borderline: 200-1000 U/L
- High Risk: >1000 U/L
Clinical Significance
Creatine Kinase (CK)
Elevated serum levels are found in skeletal muscle diseases, myocardial infarction, and cerebral ischemia/injury.
Treatment Options
Creatine Kinase (CK)
- Identify etiology of elevated CK with physical assessment and additional diagnostic tests as indicated.
- Treatment is based on etiology of elevation.
