LABORATORY TEST

Laboratory Test: T4, Free

Test Code: L017

Methodology: Quantitative Enzymatic
Performed: Mon-Sat
Reported: 1-2 days
Specimen Required: Collect: Serum Separator Tube (SST).  Specimen Preparation: Serum free from hemolysis is the recommended specimens. Allow blood samples to clot (15 mins). Separate the serum from the cells by centrifuging for 10 minutes. Store serum at 2-8°C until analysis. Storage/Transport Temperature: Refrigerated.  Stability:  If the assay will not be completed within eight hours, refrigerate the samples at 2 to 8°C. If the assay will not be completed within 48 hours, or for shipment of samples, freeze at -20°C or colder.
CPT Codes: 84439
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