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163The Folate assay is a paramagnetic particle, chemiluminescent immunoassay for the quantitative determination of folic acid levels in human serum. Folate levels in serum and plasma (heparin) or red blood cells are used to assess folate status. The serum folate level is an indicator of recent folate intake.
The Folate assay is a competitive binding receptor assay. For the assay of folate in serum or plasma (heparin), no pre-treatment is required.
|Methodology:||Quantitative Chemiluminescent Immunoassay|
Collect: Serum Separator Tube (SST) - 0.5 ml.
Specimen Preparation: Serum free from hemolysis is the recommended specimen. Allow blood samples to clot (15 mins). Separate the serum from the cells by centrifuging for 10 minutes. Store serum at 2-8°C until analysis.
Storage/Transport Temperature: Refrigerated.
Stability: If the assay will not be completed Immediately Refrigerate at 2-8 °C for shipment of samples, if the sample will not be completed within 8 hours Freeze at -20°C . Frozen specimens can be stored up to six months before testing.
At Accu Reference: Frozen- 1 month
Accu Reference Medical Laboratory
|Cross Reference:||Folic Acid (Folate, Serum)|
Adults: 5.9 – 24.8 ng/mL
Samples can be accurately measured within the analytical range of the lower limit of detection and the highest calibrator value approximately 1.0-24.8 ng/mL. Samples with values above the upper limit are diluted and repeated.