Test Code T3 T3 (Triiodothyronine), Total

Important Note

Patients taking high doses of Biotin may have false elevated Total T3 results

Memorial Hospital Laboratory- Automated Procedures	304-388-5953
Teays Valley Hospital Laboratory	304-757-1770

Plasma- Mint Green, Dark Green Lithium Heparin or Serum-SST gold top, red top

Allow SST or red top to completely clot

Spin and physically separate plasma/serum from contact with cells as soon as possible

4 mL of plasma/serum (minimum 2 mL)

0.87-1.78 ng/mL

Chemiluminescent immunoenzymatic competitive assay

Monday through Friday, Continuously

AM Collection	Expected by 9AM same day
Routine	Expected within 24 hrs
Stat	Expected within 1 hr
Timed	Expected results are test dependant

84480