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TOTAL T4
Number 550
CPT Code 84436
Alias 
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 1 Week
Stability Frozen 1 Month
Patient Preparation 
Methodology 

Immunoassay

Limitations 
Rejection Criteria 
Additional Instructions 
Performing Laboratory Primex
TagsTHYROXINE, TETRAIODOTHYRONINE, THYROID, TOTAL

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