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Test Code T3UPTAKE T3 Uptake

Specimen Requirements

Container/Tube:  Red/SST

Preferred:  1 mL serum; Minimum: 0.5 mL

Acceptable:  Plasma collected in: Sodium heparin (green-top) or lithium heparin (green-top) tube

 

 

TRANSPORT TEMPERATURE/STABILITY

Room Temperature:  7 days

Refrigerated:  10 days

Frozen:  28 days