Methodology
Chromatography/Mass Spectrometry; Equilibrium Dialysis; Calculation (CALC)
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB01339
Lab Test Days
Daily
Standard TAT
4 Days
Collection Information
Specimen Required
2-4 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Plasma collected in: Sodium heparin (green-top) or lithium heparin (green-top) tube is also acceptable.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 7 Days; Refrigerate: 21 Days; Frozen: 2 Years
Rejection Criteria
Gross hemolysis; Gross lipemia
Test Volume Required
1.8 mL Serum or Plasma
Minimum Test Volume
0.9 mL Serum or Plasma
Processing Instructions
Indicate serum or plasma in flag comment, on specimen and on batch sheet. Red-top tube (no gel): Allow blood to clot at room temperature. Centrifuge to separate the serum from the cells and immediately pour serum into a plastic transport tube. Serum separator tube (SST): Allow blood to clot at room temperature, centrifuge, and remove serum from the gel immediately (not to exceed 48 hours) by pouring serum into a plastic transport tube.
Included Tests
Testosterone, Total, MS and Testosterone, Free (Dialysis).
CPT Codes
84402, 84403
Revised
5/17/24
Initials
SA