Specimen:
Collect
- One SST
Also Acceptable:
- One Red Top
Submit
- 2 mL (Min:0.3 mL) Serum in Standard Transport Tube. Submit Refrigerated. Submit in a Standard Transport Tube.
Also Acceptable:
- 2 mL (Min:0.3 mL) Serum in Standard Transport Tube. Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling
- Separate serum from cells ASAP or within 2 hours of collection
Rejection Criteria
- Plasma
Stability
Ambient: 4 Day(s); Refrigerated: 2 Week(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology
- High Performance Liquid Chromatography/Tandem Mass Spectrometry
- Quantitative Equilibrium Dialysis
Performed
Tuesday, Thursday, Sunday
Reported
3-7 Day(s)
CPT Codes
- 84439
Components
- 90202 - FREE T4
Last Updated: April 30, 2025 @ 9:13 am
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