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Test ID BLOD0596 T4 (Thyroxine), Free

AKA

Free T4, T4, Free

Specimen Type/Requirements

Green (Lithium Heparin) Tube or Gold (SST Serum) Tube

Specimen Volume

Preferred Volume

500 µL serum/plasma

Minimum Volume

150 µL serum/plasma

 

Stability/Transport

Room Temperature 6 days  
Refrigerated 24 hours Preferred for Transport
Frozen 6 days  

 

Performed Test Frequency

Monday-Sunday

Methodology

Chemiluminescence

Performing Lab

Sanford Laboratories Fargo-Core Lab

CPT

84439