Test Directory

Total T3

Loinc

Expected Turnaround

24 hours

Information

The determination of T3 is utilized in the diagnosis of T3 thyrotoxicosis, the detection of early stages of hyperthyroidism and for indicating a diagnosis of thyrotoxicosis factitia.2

Collection Information

Methodology

Electrochemiluminescence-immunoassay (ECLIA)

Limitations

Rejection Criteria

Specimen Stability

Room temperature: 8 days Refrigerated:14 days Frozen: 12 months

Alias

Total T3; T3 Total, Serum; T3 Suppression; Triiodothyronine (T3); Triiodothyronine, Total T3

Container Type

Serum, gel separator, SST

Minimum Volume

1 ML

Age Range

0 - 999

Sex

Generic

Units of Measure

ng/dL

Reference Range

80 ng/dL - 200 ng/dL

Panic Range