Vitamin C Level
Vitamin C, Plasma, Ascorbic Acid, Plasma, WARDE: VITC, Antrim #81980, EPIC: LAB6181, SOFT: XVITC
- The patient should be fasting overnight (12-14 hours) prior to specimen collection. For infants, collect specimen prior to next feeding. Water can be taken as needed.
- Refrain from taking vitamin C for 24 hours prior to collection.
Specimen Collection Criteria
Collect: One Dark Green-top Lithium or Sodium Heparin tube.
Also acceptable: One plain Red-top or Gold-top SST tube.
- Protect specimen from light.
- Place specimen on ice after draw.
- Specimen must be processed within 2 hours of collection.
- Separate samples must be submitted when multiple tests are ordered.
Physician Office/Drawsite Specimen Preparation
Critical frozen. Protect specimen from light. Centrifuge specimen immediately. Transfer plasma or serum to an amber plastic transport tube and freeze (-20°C/-4°F or below).
Preparation for Courier Transport
Transport: 2.0 mL light-protected plasma or serum, frozen (-20°C/-4°F or below). (Min: 1.0 mL)
- Grossly hemolyzed specimens.
- Specimens not protected from light.
- Specimens not collected and processed as indicated.
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 2 hours
Refrigerated (2-8°C or 36-46°F): Unacceptable
Frozen (-20°C/-4°F or below): 5 days
Specimen Storage in Department Prior to Disposal:
Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.
Sent to Warde Medical Laboratory, Ann Arbor, MI.
Monday, Wednesday, Friday.
Results available in 3-5 days.
High-Performance Liquid Chromatography (HPLC).
Vitamin C facilitates the absorption of dietary iron and is involved in a number of other metabolic pathways.
WARDE: VITC, Antrim #81980, EPIC: LAB6181, SOFT: XVITC
Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.
This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills,
Grosse Pointe, Royal Oak, and Troy campuses.