Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

T3 UPTAKE

ORDERING INFORMATION:
Sunquest Test Code:
T3UP      Geisinger Epic Procedure Code: 84479.01         Geisinger Epic ID: 22124

SPECIMEN COLLECTION
Specimen type:
Serum (preferred) or plasma.
Preferred collection container:
Alternate Collection Container:
4 mL green/green-top (sodium heparin) tube
3 mL green/black top lithium heparin tube
Specimen required:
1 mL aliquot of serum; minimum 0.5 mL

SPECIMEN PROCESSING
Specimen 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:
22-35%.
CPT code(s):
84479
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.
Test includes:
T3 uptake.
Methodology:
Immunoassay
Synonyms:
Quest test code 861. Resin Uptake,Triiodothyronine, Resin Uptake (T3),T3 Index,T3RU,T3 Resin Uptake,T3 (Triiodothyronine),Hanolsky Uptake Test

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Sun-Fri a.m., nights, Sat a.m.; Report available: Next day.    
Performed stat? No
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