Specimen Collection Manual and Test Catalog
T3 UPTAKE
Geisinger Epic Procedure Code: LAB3122 Geisinger Epic ID: 22124SPECIMEN COLLECTION
Specimen type:
Serum (preferred) or plasma.
Preferred collection container:
Alternate collection container:
3 mL green/black top lithium heparin tube
4 mL green/green-top (sodium heparin) tube
Specimen required:
1 mL aliquot of serum; minimum 0.5 mL
SPECIMEN PROCESSING
Processing instructions:
Allow to clot. Centrifuge 10 minutes at 3000 rpm.
Transport temperature:
Room temperature (preferred). Refrigerated or frozen specimen also acceptable.
Specimen stability:
Room Temperature: 7 days. Refrigerated: 10 days. Frozen: 28 days.
TEST DETAILS
Reference interval:
CPT code(s):
84479 22-35%.
Note: The billing party has sole responsibility for CPT coding. Any
questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
T3 uptake.
Methodology:
Immunoassay
Synonyms:
Review Date:
11/13/2024 T3UP, Quest test code 861. Resin Uptake,Triiodothyronine, Resin Uptake (T3),T3 Index,T3RU,T3 Resin Uptake,T3 (Triiodothyronine),Hanolsky Uptake Test
Performing Locations