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CPK
Test CodeCK
Alias/See Also
CK, Creatinine Kinase
CPT Codes
82550
Preferred Specimen
0.8 ml of whole blood (0.4 mL of serum or plasma)
Minimum Volume
0.4 mL of whole blood (0.2 mL of serum or plasma)
Instructions
Avoid hemolysis.
Transport Container
Serum separator (gold top) or for inpatients/MSTI/ED only lithium heparin (green or mint top)
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature: 4 hours
Refrigerated: 5 days
Frozen: 1 month at -18 C
Refrigerated: 5 days
Frozen: 1 month at -18 C
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, icteric specimens
Methodology
Multiple Point Rate
Setup Schedule
Daily
Report Available
Inpatient turn around time: Routine 3 hours, stat 30 minutes. Outpatient specimens received by noon will be reported by 4:30 p.m. Specimens received after noon will be reported by the next morning.