Methodology
Chromoatography/Mass Spectrometry
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics Chantilly
Epic ID
Other Reference Test
Lab Test Days
Monday, Wednesday and Friday
Standard TAT
2-5 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Red-Top Tube
Collection Instructions
Protect sample from light. Plasma collected in an EDTA (lavender-top) tube or sodium heparin (green-top) tube is also acceptable.
Processing Information - Lab Use Only
Transport Temperature
Frozen Only
Specimen Stability
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 30 Days
Rejection Criteria
Serum separator tube (SST)
Test Volume Required
1 mL Serum or Plasma
Minimum Test Volume
0.5 mL Serum or Plasma
Processing Instructions
Pour serum or plasma into amber transport tube (preferred) or transport tube wrapped in aluminum foil to protect from light.
CPT Codes
84591
Revised
8/15/25
Initials
SA