Test Details
Mnemonic
RBCF
Ordering Code
1000773
CPT-4 Code(s)
82747
Specimen Information
Patient Preparation
A hematocrit result is required. Provide a hematocrit from this collection 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.
Collect
Lavender EDTA
Specimen Preparation
Send 1 full EDTA whole blood (entire sample) in the original collection tube along with the hematocrit.
Alternate Specimen
Whole blood in K2EDTA (pink top) tubes are acceptable.
Minimum Volume
1.0 mL of well mixed aliquot of EDTA whole blood.
Transport Temperature
Frozen
Rejection Criteria
Lipemia, clotted whole blood, plasma, serum
Concentrations of biotin greater than 1500 ng/mL may interfere with assay.
Concentrations of biotin greater than 1500 ng/mL may interfere with assay.
Stability
Room temperature: 8 hours
Refrigerated: 24 hours
Frozen: 2 months
Refrigerated: 24 hours
Frozen: 2 months
Methodology
Chemiluminescence
Reference Range
280 - 791 ng/mL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes