Folic Acid, RBC and Hematocrit


Abbrev Code:FOLRBC   
Order Code:LAB6657Order Name:Folate RBC
Synonyms:RBC Folic Acid; Folate, RBC
Methodology:Chemiluminescent immunoassay
CPT Codes: 82747 x1, 82747 x1, 85014 x1, 85014 x1
Test Includes:Folic Acid, RBC (LAB6657) sent to ARUP and Hematocrit (LAB289) performed in-house.
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-2 days.
Special Instructions:Hematocrit must be performed and indicated on the test request form. If the patient has not received a transfusion or experienced excessive bleeding between the RBC folate draw and the hematocrit draw, any hematocrit drawn within 24 hours of the RBC folate draw is acceptable.
Compliance:

This test uses an in vitro diagnostic (IVD) that has been cleared or approved by the FDA.



Collection Instructions

Specimen:Blood
Optimal Volume:1 mL for Folate; 1 mL in second tube for Hematocrit
Minimum\Peds Volume:1 mL; 1 mL in second tube or 0.3 mL in an EDTA microtainer for hematocrit.
Container:Purple (EDTA) protect from light
Collection Instructions:Immediately mix specimen 10 times by gentle inversion.
Causes for Rejection:Non-frozen specimens. Clotted specimens.


Processing and Shipping

Specimen Processing:Protect from light during collection, storage and shipment. Do not centrifuge. Submit whole blood sample in an ARUP amber aliquot tube. Result the current hematocrit in the required aliquot field prior to sending to the reference laboratory. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Shipping Instructions:Ship whole blood on dry ice.
Stability:2 hours at room temperature; 4 hours refrigerated; 2 months frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:70385


Interpretive

Reference Range:Greater than or equal to 366 ng/mL
Hematology Reference Ranges
Use:Aids in detection of folate deficiency.


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