RBC FOLATE (RCF)
: Esoteric Chemistry
: Red Blood Cell Folate, RCF
: Competitive Binding
: 366 - 1356 ng/mL
: Lavender top (EDTA)
: Whole Blood
: Whole blood with Heparin
: 2 microtainers
: 5 mL Whole blood
: 2.5 mL Whole Blood
: Send to lab immediately after collection
: Refrigerated (2 to 8C) up to 48 hours before preparing hemolysate. Hemolysate may be stored at -20º C for up to 30 days.
Reasons for Rejection
: Unprocessed specimen over 4 hours old at arrival to lab, incorrect specimen, clotted
: Monday - Friday
: 7:00 a.m. - 2:00 p.m.
: Up to 3 days
: Red Cell Folate measurements provide limited additional clinical utility to serum folate alone and should only be ordered in patients with macrocytic anemia.
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