Update Type: Reference range changed
Test Updated: 03/02/2022
Test Overview
Test Methodology
ELISA
Reference Range *
< 1.50
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Limitations
This assay was developed for the detection of IgG4 subclass antibody to enhance specificity without sacrifice of sensitivity. Antigens of Dirofilaria immitis are employed that serologically crossreact with all filarial species, including W. bancrofti, B. malayi and O. volvulus. Chronic elephantiasis may not result in a significant IgG4 antibody response and cannot be ruled out by this test.
Test Details
Days Set Up
Wednesday
Analytic Time
1 - 8 days
Soft Order Code
MMLR
Synonyms
- Microfilaria Antibody
- Brugia sp. Antibody
- Wuchereria bancrofti Antibody
- Onchocerca volvulus Antibody
- Mansonella Antibody
- Loa loa Antibody
Laboratory
Sendout
Reference Laboratory
Mayo FFAG4 (57875) (Focus 34168)
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
Alternate Specimen
EDTA or ACD plasma is acceptable. [1/07]
Normal Volume
0.2 mL serum
Minimum Volume
0.1 mL serum
Additional Information
Test sent to Mayo Medical Laboratories; performed by Focus Diagnostics.
Billing
CPT Code
86682
LOINC
14208-3