Methodology
Chromatography/Mass Spectrometry; Equilibrium Dialysis; Calculation (CALC)
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics Valencia
Epic ID
LAB01339
Lab Test Days
Daily
Standard TAT
4 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Plasma collected in a heparinized (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; Serum/Plasma separator tubes (SST/PST)
Test Volume Required
0.9 mL Serum or Plasma
Minimum Test Volume
0.38 mL Serum or Plasma
Included Tests
Total Testosterone and Free Testoserone (calculated)
CPT Codes
84402, 84403
Revised
02-25-22
© 2023 Rady Children's Hospital–San Diego