Thyroid Stimulating Hormone with reflex to Free Thyroxine
CPT Code(s): | 84443; if reflexed 84439 |
Specimen Required: | Patient Preparation: Collect:Serum separator tube or plasma separator tube. Also acceptable: Lavender (EDTA) or green (sodium or lithium heparin). Specimen Preparation:Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an RDL Standard Transport Tube. (Min: 0.5 mL) Storage/Transport Temperature:Refrigerated. Stability:After separation of cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month |
New York DOH Approval Status: | This test is New York DOH approved. |
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