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Test Code 151918758 TSH (Thyroid Stimulating Hormone)

Specimen Requirements

Submit only 1 of the following specimens:

 

Hospital Preferred Specimen Type: Plasma

Container/Tube: Lithium heparin gel

 

Outreach Preferred Specimen Type: Serum

Container/Tube: Serum gel

 

Spin Instructions:

Serum gel:  Allow to sit for 30 minutes prior to spinning.  Spin within 2 hours of collection.

Heparin plasma: Spin within 45 minutes of collection.   

Also acceptable:  Red top tube

Specimen Transport Temperature

Refrigerated

 

Storage Temp Stability

Refrigerated:  7 days

Methodology

LOCI—Luminescent Oxygen Channeling Immunoassay

 

Methodology changed from 3rd Generation assay using direct chemiluminescent technology on 11/17/15.

Reference Range

New reference range effective 6/22/2021

0.350 – 4.940 uIU/mL

Day(s) Test Set Up/TAT

Performed:

Daily

Available STAT

 

STAT:  < 1 hr

Routine:  < 4 hrs

Aliases

TSH

CPT Code

84443