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Test Code FT4 T4, Free

Additional Codes

EMR Interface Order Code: 27575

Collection Container

Serum gel

Specimen Required

Serum

Other Acceptable Specimen Types

Heparinized and EDTA plasma

Specimen Volume

1 mL

Minimum Specimen Volume

0.5 mL

Transport Temperature

Refrigerate

Specimen Stability

Refrigerated: 5days, Refrigerate: 7 days, Frozen: 30 days freeze/thaw cycle 1

Methodology

Electrochemiluminescence immunoassay (ECLIA)

Reference Ranges

Male and female: 0.70-1.80 ng/dL

Turnaround Time

24 hours

Day(s) and Time(s) Performed

Test performed daily

CPT Code

84439

Units of Measure

ng/dL