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Creatine Kinase
Test CodeLAB62
Alias/See Also
CPK; CK
CPT Codes
82550
Instructions
"Routine venipuncture. Blood
Collect one 4.5ml light green top (heparin) tubeor one 5ml Red/gold top serum separator tube"
Collect one 4.5ml light green top (heparin) tubeor one 5ml Red/gold top serum separator tube"
Specimen Stability
"Refrigerate, stable 8 hours; stable 4 hours at room temperature; stable 2-3 days if frozen.
Test should be performed as soon as possible due to poor stability at room temperature."
Test should be performed as soon as possible due to poor stability at room temperature."
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Insufficient quantity; gross hemolysis; failure to follow stability requirements
Methodology
Multiple-point rate:The rate of change in reflection density is then converted to enzyme activity.
Setup Schedule
Daily/STAT
Report Available
"Within 24 hours
STAT:1 hour"
STAT:1 hour"
Reference Range
"Female: 30-135 U/L
Male: 55-170 U/L"
Male: 55-170 U/L"
Clinical Significance
Measurements of creatine kinase and its isoenzymes are used in the diagnosis and treatment of myocardial infarction and muscle diseases such as progressive, Duchenne-type muscular dystrophy.
