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HelpTest Code FT3 T3 (triiodothyronine), Free
Additional Codes
Free Triiodothyronine
Specimen Requirements
Serum
Lithium heparin - green SST
K2-EDTA, K3-EDTA plasma - lavender top
Specimen Stability
Refrigerated - 7 days
Frozen - 30 days
Methodology
Electrochemluminescence
Day(s) Test Set Up
Monday through Sunday
Testing Performed
Conway Regional Medical Center Laboratory
Reference Range
Adults
2.0 - 4.4 pg/ml
Children
4-30 days 3.4 - 5.2
2-12 mos 3.8 - 6.4
2-6 yrs 4.0 - 5.2
7-11 yrs 4.0 - 5.2
12-19 yrs 3.9 - 5.0
CPT
84481