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Test Code VITCM Ascorbic Acid (Vitamin C), Plasma

Additional Codes

Mayo VITC
Epic ID LAB671

 

Specimen Type

Plasma Heparin


Shipping Instructions


Ship specimen frozen on dry ice in amber vial to protect from light.



Specimen Required


Patient Preparation:

Fasting: 12 hours, required; infants should have specimen collected before next feeding

Supplies: Amber Frosted Tube, 5 mL (T915)

Collection Container/Tube:

Preferred: Green top (sodium or lithium heparin) (plasma gel/PST are not acceptable)

Submission Container/Tube: Amber vial

Specimen Volume: 1 mL Plasma

Collection Instructions:

1. Immediately place specimen on wet ice and process within 2 hours of collection.

2. Centrifuge at 4° C, aliquot plasma into amber vial to protect from light.

3. Freeze plasma immediately, ideally at or below -60° C, protected from light.


Specimen Minimum Volume

Plasma: 0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Heparin Frozen 14 days LIGHT PROTECTED
UPH Waterloo Region Lab Test Catalog Note:

Transport frozen in amber plastic vial.

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK
Not light protected Reject

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Portions of this test are covered by patents held by Quest Diagnostics

Useful For

Identifying vitamin C deficiency

Day(s) Performed

Monday through Friday

Report Available

3 to 5 days

Reference Values

0.4-2.0 mg/dL

CPT Code Information

82180