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HelpTest Code TT3 T3, Total
Collection Container
Serum gel
Specimen Required
Serum
Other Acceptable Specimen Types
Li-heparin, Na-heparin and EDTA plasma are also acceptable.
Specimen Volume
1 mL
Minimum Specimen Volume
0.5 mL
Transport Temperature
Refrigerate
Specimen Stability
Room Temperature: 8 days, Refrigerated: 14 days, Frozen: 12 months freeze/thaw cycle: 1
Methodology
Electrochemiluminescence immunoassay (ECLIA)
Days and Times Performed
Test performed daily
Turnaround Time
24 hours
Reference Ranges
Male and Female: 80 - 180 ng/dL
Units of Measure
ng/dL
CPT Code
84480
EMR Interface Order Code
27475