Filariasis Abs IgG4
Test Mnemonic
FILAR1
CPT Codes
- 86682 - QTY (1)
LOINC ®
14208-3
Aliases
- Filaria Antibody (IgG4)
- Filaria IgG4 Antibody
- Filariasis
Performing Laboratory
Focus Laboratories MRL
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL | Serum | SST (Gold) | Ambient | Centrifuge and aliquot into plastic screw-capped vial |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL | Serum | No additive (Red) | Ambient | Centrifuge and aliquot into plastic screw-capped vial |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 7 days |
| Refrigerated | 14 days |
| Frozen | 30 days |
Days Performed
Wed
Turnaround Time
2 - 8 days
Methodology
| Name | Description |
|---|---|
| Immunoassay (IA) |
Reference Range
| Filariasis Abs IgG4 | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | <2.50 | < 2.50 |
Special Info
Centrifuge and aliquot into plastic screw-capped vial.
Clinical Info
This assay detects Filaria IgG4 subclass antibody to enhance specificity without sacrifice of sensitivity. It can identify patients with Filarial infections caused by D. immitis, W. bancrofti, B. malayi and O. volvulus. Chronic infections manifesting as elephantiasis may not result in a significant IgG4 antibody response and cannot be ruled out by this test.