Test Name
Thyroid Panel
Panel includes
TSH, Free T4 & Free T3
Specimen Type & Acceptability
Serum
7 days refrigerated.
General Use
Panel is used to assess thyroid function and aid in the diagnosis of hyperthyroidism and hypothyroidism. Testing can also be used to follow patient therapy.
CPT Code(s)
84439, 84443, 84481
Special Instructions
Let clot for 10-20 minutes. After the sample is fully clotted, centrifuge the sample. Verify complete separation between cells and serum. DO NOT OPEN TUBE and refrigerate.
Container/Tube Type
Volume
2 mL Min. vol. = 500 ul
Suggested Tube Types
Description
Typical Volume
Gold Top Serum Separator Tube (SST)
⋜ 5 mL
Tiger Top Serum Separator Tube (SST)
^For larger volume tests
> 5 mL
Red Top Tube (No additive)
⋜ 5 mL
EDTA Whole Blood
3 mL
3.2 % Sodium Citrate Whole Blood
2.7 mL
Lithium Heparin Plasma Separator Tube
⋜ 5 mL