Test Contains (LOINC)
Vitamin C Plasma (1903-4)
Sodium Heparin (Green Top) Tube or Lithium Heparin (Green Top) Tube
Plasma Separator Tube
Minimal Sample Volume
Protect from light, centrifuge, transfer plasma and freeze within 1 hour of collection. Transfer 0.5 mL plasma to an Amber Transport Tube.
Client Transport Temperature
After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 year
EDTA plasma, whole blood, or body fluids. Grossly hemolyzed specimens. Specimens not protected from light.
Sunday, Tuesday, Wednesday, Thursday, Saturday
Expected Turn Around
2 - 7 Days
Quantitative High Performance Liquid Chromatography
1. Fasting specimen preferred. 2. Thawing and refreezing of the specimen and exposure to light will result in decreased Vitamin C concentration. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.