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Ascorbic Acid

Referred out for testing

Source Blood
Mnemonic VITCS
Specimen Requirements

Collections performed at Beddington & Sloane Square PSCs, or at RRLs only; pediatric collections available at ACH.
Test cannot be collected by Mobile Collection Service (MCS).

NOTE: TCA must be obtained from FMC Accession prior to collection.

1 x 4 mL lavender top EDTA tube

1-2 mL plasma

Keep tubes cold (immerse in ice water or crushed ice) prior to and immediately after collection. 

Specimen Handling

All sites:

  1. Centrifuge at 4ºC + 2ºC within 30 minutes of collection.
  2. Transfer 1 mL 5% w.v. TCA into a plastic tube (aliquot tube).
  3. Aliquot 0.5 mL plasma into the TCA, mixing while adding.
  4. Write "TCA added" on the tube.
  5. Freeze sample before transport to the DSC.

Note: If 2 mL or more of plasma, follow the steps above and send in separate aliquots.

Send specimen in a separate bag with a photocopy of the requisition.

DSC:
Freeze specimens upon receipt in lab; ensure frozen specimens do not thaw.

Additional Information
Testing Location University of Alberta
Testing Frequency
Alternate Name(s) Vitamin C
Reference Interval