Methodology
Immunoassay (IA)
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics Valencia
Epic ID
Other Reference Test
Lab Test Days
Monday-Saturday
Standard TAT
1-3 Days
Collection Information
Specimen Required
2-6 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Plasma collected in and EDTA (lavender-top) tube is also acceptable. Do not use gel barrier tubes. Avoid contact of samples with plasticizers, varnishes, paint fumes, and fatty acids. Collect as trough just before next dose (optimum time to collect sample: 1 hour prior to next dose).
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK
Specimen Stability
Room Temp: 48 Hours; Refrigerated: 7 Days; Frozen: 60 Days
Rejection Criteria
Serum separator tube (SST)
Test Volume Required
3 mL Serum or Plasma
Minimum Test Volume
1 mL Serum or Plasma
CPT Codes
80165
Revised
07-07-19
Initials
SL