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Folate RBC : 467
Test CodeRCFOLC or 467
Alias/See Also
Red Blood Cell Folate,RBC Folic Acid,Folic Acid, RBC,Red Cell Folate,RBC Folate
CPT Codes
82747
Instructions
EDTA (lavender-top) tube
The HCT and folate will be performed on this tube.
If sample is sent frozen, a default hematocrit will be used for calculation of the RBC folate. Do not freeze as this will affect the HCT.
The HCT and folate will be performed on this tube.
If sample is sent frozen, a default hematocrit will be used for calculation of the RBC folate. Do not freeze as this will affect the HCT.
Transport Container
Preferred Specimen
Whole blood collected in an EDTA (lavender-top) tube sent at room temperature will have folate and hematocrit testing performed.
Alternative Specimen
2 mL frozen (EDTA) whole blood in a transport tube.
Note: HCT testing cannot be performed on a frozen specimen. A default HCT result will be used for calculation of the RBC folate value.
Minimum Volume
0.2 mL
Whole blood collected in an EDTA (lavender-top) tube sent at room temperature will have folate and hematocrit testing performed.
Alternative Specimen
2 mL frozen (EDTA) whole blood in a transport tube.
Note: HCT testing cannot be performed on a frozen specimen. A default HCT result will be used for calculation of the RBC folate value.
Minimum Volume
0.2 mL
Transport Temperature
Room temperature.
Specimen Stability
Folate (EDTA)
Room temperature: 5 days; Refrigerated: 5 days; Frozen: 60 days
Hematocrit
Room temperature: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Room temperature: 5 days; Refrigerated: 5 days; Frozen: 60 days
Hematocrit
Room temperature: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Methodology
Immunoassay
Setup Schedule
Sunday - Saturday
Report Available
1 day
Reference Range
>280 ng/mL RBC
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 Laboratory
med fusion