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Methodology: Chemiluminescent Immunoassay (CLIA)
Edit Date: 3/17/2009
Performed: Daily
Released: Same day as tested
CPT Code: 84484
Specimen Collection Details
Collection: One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL green top tube (heparin) or one 4.5 mL light green plasma separator tube (PST).
Handling: Centrifuge SST or PST within 2 hours of collection and transport in original tube. Heparin must be centrifuged and plasma separated into a plastic vial within 2 hours of collection.
Stability: 24 hours refrigerated. Freeze at -10° C or below for 14 days if specimen will not be assayed within 24 hours. Unstable ambient.
Standard Volume: 1 mL serum or plasma.
Minimum Volume: 200 µL serum or plasma.
Transport: Refrigerated, or frozen on dry ice.
Rejection Criteria: Refrigerated specimen received in laboratory more than 24 hours after collection.

Normal Troponin I at or less than 0.1 ng/mL
Micro Myocardial Necrosis 0.2-2.5 ng/mL
Acute Myocardial Infarction (AMI) at or greater than 2.6 ng/mL

PeaceHealth Laboratories