Test Description
T4, Free (Direct)
Doctors who wish to order kits, please call our lab directly to set up an account before ordering. 316-684-7784
Test Details
Process time: 5 to 7 business days
CPT code: 84439
Special instructions: None
Rejection causes: Plasma Specimen, gross lipemia
Collection Instructions
Patient prep: None
Specimen volume: 1 mL serum
Minimum volume: 0.5 mL
Collection container: SST or red-stopper tube
Transport container: Plastic transport tube
Transport instructions: Refrigerate or freeze
Collection instructions: Click here for PDF
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