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Laboratory Medicine

Test catalogue

Ascorbic Acid (Vitamin C)

Test Name

Ascorbic Acid (Vitamin C)

Green Tube Specimen Type / Requirements

Container Type = 1 Green Top (LiHeparin)

Minimum Volume = 2 ml Plasma

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in green top tube (LiHep). Protect specimen from light. Specimen must be labelled inside and outside light-protecting wrap. Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions Aliquot must be labelled inside and outside light-protecting wrap. Store and send frozen. If the specimen thaws, it is unsuitable for analysis

Rejection Criteria: Grossly hemolyzed, lipemic, unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: Stable frozen at -20°C or colder for 20days. Thaw samples only once.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

10 Days

Test Utilization

Reference Value

Greater than or equal to 25µmol/L

Test Code




Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: June 06, 2019