Vitamin C, Ascorbic Acid

Green Top

Tube Type

Test ID   LAB671
EPIC Order
CPT Code(s)   82180
Group/Individual Test   Individual
Laboratory   Core Referral Testing
Tube Station   30
Specimen Routine: 4mL blood/green top tube (NA Heparin); protect from light; see important Comments 
  Micro: 1.5mL blood
Availability Routine: Reference Laboratory -  Mayo Clinic Laboratories
Turnaround Time   5-7 days
Reference Range Normal: see separate report
Patient should be fasting 12-14 hours. For infants, collect prior to feeding.
Place on wet ice immediately after collection. 
Draw a separate tube when collecting other vitamins. 
Sample must be processed within 4 hours of collection. 

Reviewed by jcayless on February 08, 2022

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514