The high sensitivity of this assay allows its use for hyperthyroidism, the differential diagnosis of hypothyroidism, and in monitoring replacement/suppression therapy.
Methodology: Immunoassay (IA)
1 yellow-top SST tube (minimum: 0.7 mL of serum). Centrifuge SST 30 minutes after draw. Refrigerate specimen after collection.
Analytical Time: 1 day
Days Set Up: Sunday through Friday