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Test Code LAB136 Triiodothyronine (T3 Total)

Clinical System Name

Triiodothyronine (T3) Total

Synonyms

T3 Total

Sample Requirements

Specimen:Whole blood

Container(s): Gold SST Microtainer, Gold SST, Red, Dark Green/Sodium Heparin

Preferred Vol: 1 mL

Minimum Vol: 0.5 mL

 

Note:

 

Processing Instructions

Reject due to:

Spin: Y

Aliquot: Y

Temp: 2-8 C

Storage location: CPA Refrigerator, FrigD rack

 

Off-site collection: Spin blood and aliquot serum/plasma in plastic aliquot tube. Send frozen.

Stability

Specimen Type Temperature Time
serum/plasma Room temp 2 h
  Refrigerated 6 d
  Frozen 2 m

 

Availability

STAT Performed TAT
N M-F 1-3 d

 

 

Performing Laboratory

Seattle Children's Laboratory    

 

Department

Department:  Chemistry

Location: Chem West

Phone Number: (206) 987-2565

 

 

CPT Codes

84480

Methodology

Method: Chemiluminescent microparticle immunoassay (CMIA) by Abbott Alinity i

Analytical Volume: 0.25 mL

Limitations:

Reference Range

 

Age ng/mL
Birth - 5 days 0.58 - 2.97
6 days - 11 months 0.66 - 2.83
1 - 19 years 0.78 - 2.20
20 - adults  0.66 - 2.20