Test Details

Mnemonic

RBCF

Ordering Code

1000773

CPT-4 Code(s)

82747

Specimen Information

Patient Preparation

Fasting preferred

Collect

Lavender EDTA

Specimen Preparation

Send 3.0 mL whole blood (entire sample preferred) refrigerated in original collection tube. If specimen is submitted frozen, please provide hematocrit. A hematocrit collected within 24 hours of the RBCF collection is acceptable if the patient has not received a transfusion or experienced excessive bleeding in that 24 hour period.

Alternate Specimen

Whole blood in K2EDTA (pink top) tubes are acceptable.

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Rejection Criteria

Lipemia, clotted whole blood, plasma, serum

Stability

Room temperature: 8 hours
Refrigerated: 72 hours
Frozen: 60 months

Methodology

Chemiluminescence
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Reference Range

280 - 791 ng/mL
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Performing Laboratory

Warde Medical Laboratory
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