Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Serum or Plasma
Quest Diagnostics San Juan Capistrano
1-2 mL Blood
Red Top (No Additive)
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.
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 35 Days
Hemolysis; Lipemia; Received room temp; Received refrigerated; Not protected from light; EDTA plasma; Lithium plasma; Thawed samples
1 mL Serum or Plasma
0.5 mL Serum or Plasma
Allow blood to clot refrigerated. Separate serum or plasma and freeze immediately. Protect from light.