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HelpTest Code LAB20615 Folate, RBC
Department
Send Outs
Reference Lab Test Number
RBCF
Collection Requirements
Fasting preferred Patient Preparation: A hematocrit result is required- need either a refrigerated lavender specimen or provide a hematocrit from this collection with the frozen lavender with the sample submission. A hematocrit collected within 24 hours of the RBCF collection is also acceptable if the patient has not received a transfusion or experienced excessive bleeding in that 24 hour period. Please note: Methotrexate and leucovorin may interfere with assay.
Refer To
Primary Collection Container
2- Lavender 4 mL (K3EDTA)
Transport
1 Lavender- Whole Blood Refrigerated
1 Lavender- Whole Blood Frozen
Preferred Transport Temperature
1 Refrigerated and 1 Frozen
Processing
Send 2 full EDTA whole blood (entire sample) in the original collection
tube
OR
1 ful EDTA whole blod (entire sample) in the original collection tube along with the hematocrit
Stability
Room temperature: 8 hours
Refrigerated: 24 hours
Frozen: 2 months
Minimum Testing Volume
1.0 mL in each lavender tube
Reference Range
280-791 ng/mL
Methodology
Chemiluminescence
Performed
2-4 days
Reported
Monday-Friday
CPT Codes
82747
Unacceptable Conditions
Lipemia, clotted whole blood, plasma, serum