Thyroid Panel: Free thyroxine index; T3 uptake (THBR); thyroid-stimulating hormone (TSH); thyroxine (T4)

Test ID: 

704194

CPT code:

84436, 84479, 84443

Synonyms:

Thyroid Profile With TSH
’99 Thyroid Profile + TSH Profile (Compliance)

Specimen Type:

Serum

Requested Volume: 

2 mL

Minimum Volume: 

0.7 mL

Container Type: 

Red-top tube or gel-barrier tube

Collection:

If a red-top tube is used, transfer separated serum to a plastic transport tube.

Storage Instructions:

Room temperature

Stability Requirement:

Temperature                         Period
Room temperature              14 days
Refrigerated                          14 days
Frozen                                    14 days
Freeze/thaw cycles Stable     x3

Rejection Criteria

Plasma specimen