Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Synonyms
Ascorbic Acid
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB01108
Lab Test Days
Tuesday-Saturday
Standard TAT
6-9 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Red Top (No Additive)
Collection Instructions
Overnight fasting is preferred. Patient should refrain from taking vitamin C supplements or fruits 24 hours prior to sample collection. Plasma collected in a sodium heparin (green-top) tube is also acceptable. Protect from light.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 35 Days
Rejection Criteria
Hemolysis; Lipemia; Received room temp; Received refrigerated; Not protected from light; EDTA plasma; Lithium plasma; Thawed samples
Test Volume Required
1 mL Serum or Plasma
Minimum Test Volume
0.5 mL Serum or Plasma
Processing Instructions
Allow blood to clot refrigerated. Separate serum or plasma and freeze immediately. Protect from light.
CPT Codes
82180
Revised
04-24-18
Initials
SL