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FREE T4
Number 551
CPT Code 84439
Alias
Specimen Container SST
Specimen Type Serum
Turn Around Time 24-48 Hours
Days Performed Monday – Saturday
Reference Range
Alternate Specimen
Volume 1 mL Serum
Stability Ambient 1 Day
Stability Refrigerated 2 Days
Stability Frozen 2 Months
Patient Preparation
Methodology
Immunochemiluminometric assay (ICMA)
Limitations
Rejection Criteria
Additional Instructions
Performing Laboratory Primex
TagsTHYROXINE, TETRAIODOTHYRONINE, THYROID, FREE