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311 CAROTENE, BETA
Test CodeBCAROTE
Preferred Specimen
2 mL serum - protected from light
Patient Preparation
Overnight fasting is required
Minimum Volume
0.7 mL
Instructions
Separate from cells as soon as possible after clotting. Send serum in an amber tube. If amber tube is not available, wrap tube in aluminum foil to protect from light.
Transport Container
Plastic screw-cap vial, protected from light
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Room temperature • Not protected from light (room temperature and refrigerated)
Methodology
High Performance Liquid Chromatography (HPLC)
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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Mon-Sat; Report available: 3-4 days
Clinical Significance
Beta Carotene, a fat soluble nutrient, is a precursor to vitamin A. Deficiencies may lead to vitamin A deficiency. Excessive vitamin A intake may lead to headaches, loss of appetite, nausea and diarrhea, skin changes, and potential birth defects.
