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HelpTest Code FT4 Free T4, Plasma/Serum Newark
Specimen Volume
1.0 mL
Preferred Specimen
Green Gel (GGT)
Alternate Specimen
Gold (SST) (Serum)
Specimen Handling Instructions
Gold-top tube (Serum – SST) also acceptable.
Transport
Routine courier pick-up
Cutoff Time
None
Department
Chemistry
Methodology
Chemiluminescence
Stat Turn-around Time
N/A
Routine Turn-around Time
1 Day
Reference Ranges
0.9-1.8 ng/dL