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Labcorp Oklahoma, Inc.
Test Directory


Index:

T3 (Triiodothyronine), Free

Order Name T3F
Revision Date 04/30/2018
Test Name Methodology LOINC Code
T3 (Triiodothyronine), Free
 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL ( 0.5 mL) Plasma Lithium Heparin
Alternate 1 1 mL ( 0.5 mL) Serum Serum Gel Tube Refrigerated
Instructions Draw blood in a serum gel tube(s).
Spin down and send 1.2 mL (minimum volume: 0.5 mL) of serum refrigerated.

Note: Label specimen with patient name (first and last) or other unique identifier, patient hospital identification number or Social Security number, date and time of draw, collector initials, and test(s) being ordered.
Reference Range 2.3-4.40 pg/mL
GENERAL INFORMATION
Testing Schedule Monday through Sunday 
Expected TAT 2 Hours  
Stat TAT 45 Minutes 
CPT Code(s) 84481
Lab Section NRLS-Core Chemistry