Preferred test for screening and monitoring of thyroid function.
Quantitative Chemiluminescent Immunoassay
Within 24 hours
Plasma separator tube (PST). Also acceptable: Green (sodium heparin), lavender (EDTA), or serum separator tube (SST).
Separate serum or plasma from cells ASAP or within 2 hours of collection. Allow serum specimen to clot completely at room temperature. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Grossly hemolyzed specimens.
After separation of cells: Ambient: 8 days; Refrigerated: 2 weeks; Frozen: 2 years
Effective November 19, 2012
No compliance statements are in use for this test.
|Component Test Code*||Component Chart Name||LOINC|
|0070145||Thyroid Stimulating Hormone||3016-3|
- TSH, Pregnancy