| Specimen Type | Specimen Stability | Reference Range |
| Serum-SST | 7 days 2-8° C | 0.35-4.50 uIU/mL |
Specimen Requirements
Preferred amount: 1.0 mL Serum
Minimum amount: 0.5 mL Serum |
Method
Immunochemiluminometric
|
Schedule
Mon-Sat
|
Turn-Around Time
24hrs; Also offered STAT at an additional charge
|
Instructions/Notes
Centrifuge required?: Yes
Free T3 and Free T4 will be performed at an additional charge (CPT code(s): 84481 and 84439) when TSH result exceeds age/gender specific reference range. |
Clinical Utility
To screen for and help diagnose thyroid disorders; to monitor treatment of hypothyroidism and hyperthyroidism.
|
CPT Codes
84443 (See 'Instructions/Notes')
|
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