Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

T3, FREE, TRACER DIALYSIS

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB3124         Geisinger Epic ID: 31992

SPECIMEN COLLECTION
Specimen type:
Serum
Preferred collection container:
Alternate Collection Container:
6 mL red-top (plain, non-serum separator) tube
Specimen required:
1 mL aliquot of serum; minimum 0.5 mL.

SPECIMEN PROCESSING
Specimen processing instructions:
Centrifuge and transfer serum specimens to clean, plastic, screw-capped vial(s). 
Transport temperature:
Room temperature.
Specimen stability:
Room temperature: 4 days. Refrigerated: 7 days. Frozen: 28 days.

TEST DETAILS
CPT code(s):
84481, 84480
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.
Methodology:
Equilibrium Dialysis by Radioimmunoassay (RIA)
Immunochemiluminescence Assay
Synonyms:
Triiodothyronine, Free T3, equilibrium
Quest test code 36598
FT3DT
Clinical significance:
T3, Free, Tracer Dialysis - T3 measurements are used to diagnose hyperthyroidism. This test can also be used to clarify thyroid status in the presence of possible protein-binding abnormalities.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Sunday-Thursday. Report available: 4-7 days    
Performed stat? No
Locations  |    Search  |    Site Map |   Contact Us
©2000-2021 Geisinger Health System.   All rights reserved.