Methodology
Immunoassay (IA)
Synonyms
Thyrotropin; Thyroid Stimulating Hormone
Specimen Type
Serum
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
Other Reference Test
Lab Test Days
Tuesday-Saturday
Standard TAT
1-2 Days
Collection Information
Specimen Required
2 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Specimen collection after fluorescein dye angiography should be delayed for at least 3 days. For patients on hemodialysis, specimen collection should be delayed for 2 weeks. According to the assay manufacturer Siemens: Samples containing fluorescein can produce falsely depressed values when tested with the Advia Centaur TSH3 Ultra assay.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 7 Days; Refrigerated: 7 Days; Frozen: 28 Days
Rejection Criteria
Plasma
Test Volume Required
1 mL Serum
Minimum Test Volume
0.7 mL Serum
CPT Codes
84443
Revised
09-17-19
Initials
SL