Vitamin C
Test Summary
Vitamin C is an antioxidant involved in connective tissue metabolism, drug-metabolizing systems, and mixed-function oxidase systems to list a few. Vitamin C deficiency causes scurvy; manifestations include impaired formation of mature connective tissue, bleeding into the skin, weakness, fatigue, and depression.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum collected in a serum separator tube
Minimum Volume
0.5 mL
Instructions
See Vitamin Collection Link
Patient Preparation
Overnight fasting is preferred. Refrain from eating fruits and from taking Vitamin C supplements 24 hours prior collection.
Storage
Transport tube protected from light
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: Unacceptable
- Frozen (-20°C): 8 hours
- Frozen (-70°C): 35 days
Limitations
N/A
Other Acceptable Specimens
Plasma collected in sodium heparin (green-top) tube - protected from light
Unacceptable Specimens
Not light protected • EDTA plasma • Lithium heparin plasma • Thawed samples • Lipemic • Hemolysis • Received room temperature • Received refrigerated
Order Code
VITC
EPIC (Premier) Code
LAB423
Includes
N/A
CPT Code
- 82180
Billing Code
- 670756
CPT Statement
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute Valencia
27027 Tourney Road
Valencia CA, 91355
27027 Tourney Road
Valencia CA, 91355
Department
Reference Testing
Reference Range
Result Name Gender Reference Range Unit Of Measure
Vitamin C, LC/MS/MS Female 0.3-2.7 mg/dL
Vitamin C, LC/MS/MS Male 0.2-2.1 mg/dL
Vitamin C, LC/MS/MS Female 0.3-2.7 mg/dL
Vitamin C, LC/MS/MS Male 0.2-2.1 mg/dL
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 4 - 5 days
Resources
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum collected in a serum separator tube
Minimum Volume
0.5 mL
Instructions
See Vitamin Collection Link
Patient Preparation
Overnight fasting is preferred. Refrain from eating fruits and from taking Vitamin C supplements 24 hours prior collection.
Storage
Transport tube protected from light
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: Unacceptable
- Frozen (-20°C): 8 hours
- Frozen (-70°C): 35 days
Limitations
N/A
Other Acceptable Specimens
Plasma collected in sodium heparin (green-top) tube - protected from light
Unacceptable Specimens
Not light protected • EDTA plasma • Lithium heparin plasma • Thawed samples • Lipemic • Hemolysis • Received room temperature • Received refrigerated
Result Information
Methodology
Chromatography/Mass Spectrometry
Testing Laboratory
N/A
Reference Range
Result Name Gender Reference Range Unit Of Measure
Vitamin C, LC/MS/MS Female 0.3-2.7 mg/dL
Vitamin C, LC/MS/MS Male 0.2-2.1 mg/dL
Vitamin C, LC/MS/MS Female 0.3-2.7 mg/dL
Vitamin C, LC/MS/MS Male 0.2-2.1 mg/dL
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 4 - 5 days