Specimen Preparation: Remove plasma from cells ASAP or within 2 hours of collection. Specimen must be free of particulate matter including fibrin which can interfere with the assay. Avoid transferring material from the white blood cell/platelet layer located just above the red blood cells. Transport 1 mL plasma. (Min: 0.5 mL)
Storage/Transport Temperature: Frozen.
Unacceptable Conditions: Serum. Specimens exposed to repeated freeze/thaw cycles.
Stability (collection to initiation of testing): Ambient: 8 hours; Refrigerated: 48 hours; Frozen: 6 months
Reference Interval:
0.0-0.05 ng/mL
Interpretive Data:
0.05 ng/mL or less : Negative - repeat testing in four to six hours if clinically indicated. 0.06-0.49 ng/mL: Suspicious for myocardial injury. Serial measurements may be necessary to confirm or exclude the diagnosis of acute coronary syndrome. Repeat testing in four to six hours if indicated. 0.50 ng/mL or greater : Consistent with myocardial injury. Clinical and laboratory correlation recommended.