Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics Valencia
Epic ID
Other Reference Test
Lab Test Days
Wednesday and Saturday
Standard TAT
2-5 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Plasma collected in an EDTA (lavender-top) tube is also acceptable. A trough specimen is preferred. Collect sample within 1 hour prior to next dose.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 7 Days; Refrigerated: 7 Days; 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
CPT Codes
80210
Revised
01-01-21
Initials
cas