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THYROID STIMULATING IMMUNOGLOBULINS
Number 269
CPT Code 84445
Alias THYROID STIMULATING IMMUNOGLOBULIN, HUMAN THYROID STIMULATOR (HTS), LONG-ACTING THYROID STIMULATOR (LATS), THYRETAIN
Specimen Container SST
Specimen Type Serum
Turn Around Time 
Days Performed 
Reference Range <140%
Alternate Specimen Red Top
Volume 3 mL Serum
Stability Ambient N/A
Stability Refrigerated Preferred
Stability Frozen N/A
Patient Preparation 
Methodology 

Chinese hamster ovary cell line transfected with both the thyrotropin receptor and a luciferase reporter gene

Limitations 
Rejection Criteria 

Gross microbial contamination; specimen contaminated with anticoagulants; plasma specimen; icteric, hemolytic or lipemic serum

Additional Instructions 
Performing Laboratory Reference Laboratory
TagsTSI, STIMULATOR, THYRETAIN

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