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T3 Reverse
Test CodeLAB138
CPT Codes
84482
Preferred Specimen
Red no-additive no-gel
Minimum Volume
0.3 mL
Instructions
Allow blood to clot at room temperature for 30 minutes. Centrifuge and separate the serum from cells immediately. Alternatively, collect blood in a gel barrier tube, allow to clot at room temperature, centrifuge, and remove from gel within 24 hours.
Transport Temperature
Room Temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)