Test Name
Free T4
Availability24/7
Lab Section
Chemistry
Fluid TypePlasma, serum also acceptable
Specimen Tube Type Transport
Gel Green Top
Container Whole Blood Required3 mL whole blood in Gel Green Top or (2) Gel Green Microtainers
Summary Test NameFree T4
Specimen Stability7 days if refrigerated at 2-8°C
Minimum Volume1 mL whole blood in (2) Green Gel Microtainers
Specimen TransportRefrigerate
Specimen Preparation In HouseSpin, separate, refrigerate until analysis
Stat AvailabilityNot available STAT
Test Turnaround Time Routines And Stats2 hours
Reference Value