Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

FOLIC ACID, RED BLOOD CELL

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB2987         Geisinger Epic ID: 42036

SPECIMEN COLLECTION
Specimen type:
Whole blood
Preferred collection container:
Specimen required:
Collect two EDTA lavender-top tubes. 2 mL EDTA whole blood protected from light; minimum 1 mL. See Special Notes.
Special notes:
Collect two EDTA lavender-top tubes.One tube will go to Hematology and one tube protected from light will go to Referred Tests. Protect from light. Do not freeze.

SPECIMEN PROCESSING
Specimen processing instructions:
Wrap in foil to protect from light. 
Transport temperature:
Room temperature.
Specimen stability:
48 hours for the HCT, and 72 hours for the folate. Both tests are needed for calculation.
Rejection criteria:
Specimens not protected from light and not at room temperature will be rejected.

TEST DETAILS
Reference interval:
>280 ng/mL RBC
CPT code(s):
82747
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Methodology:
Immunoassay
Synonyms:
Quest test code 8041
RBCFLT
Clinical significance:
Folate levels have diagnostic significance in nutritional deficiencies, especially in cases of severe alcoholism, function damage to the upper third of small bowel, pregnancy and various forms of megoblastic anemia. Since serum folate levels are subject to rapid changes reflecting diet and absorption, RBC folate may be a better diagnostic tool since the levels remain fairly constant.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Monday-Friday evening    
Performed stat? No
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