Collection Notes: Grossly hemolyzed specimens will be rejected.
Clinical Utility: Elevated levels may be due to excessive exercise or muscle trauma, myocarditis, myocardial infarction, or muscular dystrophy.
Serum (1 mL)
Ambient 4 Hours
Refrigerated 6 Days
Frozen 4 Weeks
Lithium heparin plasma (1 mL)
Ambient 4 Hours
Refrigerated 6 Days
Frozen 4 Months
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