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24-Hour Urine Collection Instructions - Spanish

 

24-Hour Urine Collection Instructions - English

 

Patient Portal Information

 

 

 

 

 

Mayo Clinic Laboratories

Test Code 62871484 T3 (Triiodothyronine), Total, Serum

Performing Laboratory

Torrance Memorial Laboratories

Specimen Requirements

Submit the following specimen:

 

Specimen Type: Serum

 

Container/Tube: Serum gel

 

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

 

 Also acceptable: Red Top Tube

Specimen Transport Temperature

Transport Temperature

Refrigerated

 

Specimen Stability

Refrigerated: 6 days

Methodology

Chemiluminescent Microparticle Immunoassay

Reference Range

New Reference Range Effective 2/1/2022

35 - 193 ng/dL

Day(s) Test Set Up/TAT

Performed:

Daily

 

Available STAT:

No

 

TAT: 

< 4 hours

CPT Code

84480

Aliases

T3 Total