Folate, RBC

Patient Preparation: 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. Immediate Specimen Processing: Protect from lightAmbulatory Transport Temperature to Inova Central Lab: AmbientSpecimen Stability: 5 days

LAB70 FORBC

FORBC

Patient Preparation: 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.@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@

Processing Instructions: Whole blood EDTA (lavender-top) tube sent at room temperature will have folate and hematocrit testing performed. Wrap tube in aluminum foil to protect from light. Both the HCT and folate will be performed on this tube.If sample is sent frozen, a default hematocrit will be used for calculation of the RBC folate. Do not freeze as this will affect the HCT.Preferred Testing Volume: 2.0 mL Whole bloodMinimum Testing Volume: 0.2 mL Whole blood Transport Temperature: Lavender-top tube: AmbientOther EDTA: Frozen Stability: Folate (EDTA)Room temperature: 5 daysRefrigerated : 5 daysFrozen: 60 daysHematocritRoom temperature: 48 hoursRefrigerated : 48 hoursFrozen: UnacceptablePerforming Lab: Quest Chantilly

3-Days

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