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Folic Acid, Red Blood Cell
Test Code8041
CPT Codes
82747
Preferred Specimen
1 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
0.2 mL
Instructions
Draw EDTA (lavender-top) tube. Mix well by gentle inversion. Perform hematocrit. Please specify on the request form and on the vial the hematocrit result.
Folate is light sensitive. Minimize exposure to light during sample handling and storage. Foil wrap samples to protect from light.
Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Folate is light sensitive. Minimize exposure to light during sample handling and storage. Foil wrap samples to protect from light.
Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: 30 days
Refrigerated: 72 hours
Frozen: 30 days
Methodology
Immunochemiluminometric Assay
Setup Schedule
Set up: Mon-Fri evening; Report available: Next day
Reference Range
> 280.00 ng/mL
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
