Fluorescence Enzyme Immunoassay (FEIA)
Class 0 <0.35=Negative; Class 1 0.35-0.69= Equivocal; Class 2 70-3.49 = Positive; Class 3 3.50-17.4= Positive; Class 4 17.5-49.9= Strongly positive; Class 5 50.0-99.9= Strongly positive; Class 6 > or =100 Strongly positive
Collect specimen in SST or red top tube. Spin and aliquot into a screw capped plastic tube. Send to Specimen Processing refrigerated.
Test performed by Mayo Clinic Laboratories