Laboratory Test Information Guide

Details for Vitamin C

Test Name: Vitamin C
Alternate Name(s): Ascorbic Acid
Laboratory: Toxicology/Special Chemistry
Specimen Type: 4.5 mL Green (Lithium Heparin) top Vacutainer tube
Collection Information: Collect blood for Adult sample aseptically in a Vacutainer tube.

Serum is also acceptable.

Pediatric:

0-2 yrs: Red 0.5pk.
2-10 yrs: 2 mL Red top

Protect sample from light by wrapping in foil.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Routine
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
10 days
Stat
 
 
Reference Range: ≥ 25 µmol/L
Effective Date: 2009-07-02
Revised Date: 2013-01-08
Critical Value:  
Interpretive Comments: Vitamin C is very unstable to freeze/thaw cycles. Any results of referred in specimens that are below the reference range should be interpreted with caution as the laboratory cannot confirm that processing and shipping requirements have been followed.
Special Processing: Protect sample from light, separate then freeze immediately.

Do not allow to thaw.
Comments:  
Method of Analysis: HPLC
Critical Information Required:  
Storage & Shipment: Separate and freeze. Do not allow the specimen to thaw at any time.
Any specimen that arrives at the laboratory thawed will not be tested.
System Codes: 
Cerner
VITC
 
Referred To:  

Questions? Comments? Contact Laura Gopaul