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FREE T3
Number 386
CPT Code 84481
Alias FREE T3
Specimen Container SST
Specimen Type Serum
Turn Around Time 24-48 Hours
Days Performed Monday – Saturday
Reference Range 
Alternate Specimen 
Volume 1 mL Serum
Stability Ambient 1 Day
Stability Refrigerated 7 Days
Stability Frozen 2 Months
Patient Preparation 
Methodology 

Immunochemiluminometric assay (ICMA)

Limitations 
Rejection Criteria 
Additional Instructions 
Performing Laboratory Primex
TagsTRIIODOTHYRONINE, UNBOUND

COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More