T3 UPTAKE

Code
900.5240
Name
T3 UPTAKE
Category
None
Department
Send-Out
Start Date
Expiration Date
Synonyms
CPT Codes
84479
Site
SBMF
Reference Test
44636
ATLAS Test Code

Specimen Information

Type

Gold, SST

Volume

1.0 ml

Transport Info

Centrifuge and immediately transfer serum to separate plastic tube
Refrigerated

Fasting Required?
False
Patient Instructions

Reference Range

28-41% uptake

Methodology

Electrochemiluminescent Immunoassay (ECLIA)

Clinical Significance

Obsolete test
Thyroxine, Free (Free T4) (30113) is the preferred test alternative for T3 uptake and Free Thyroxine Index tests

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