Filariasis Abs IgG4
Test Mnemonic
FILAR1
CPT Codes
- 86682 - QTY (1)
LOINC ®
14208-3
Aliases
- Filaria Antibody (IgG4)
- Filaria IgG4 Antibody
- Filariasis
Includes
- Filaria Antibody IgG4, ELISA
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL | Serum | SST (Gold) | Refrigerated | Separate serum from cells and transfer to standard aliquot tube. Separate specimens must be submitted when multiple tests are ordered. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL | Serum | No additive (Red) | Refrigerated | Separate serum from cells and transfer to standard aliquot tube. Separate specimens must be submitted when multiple tests are ordered. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.1 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 1 week |
| Refrigerated | 2 weeks |
| Frozen | 1 month |
Days Performed
Varies
Turnaround Time
7 - 12 days
Methodology
| Name | Description |
|---|---|
| Semi Quantitative Enzyme Linked Immunosorbent Assay |
Reference Range
| Filariasis Abs IgG4 | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | <2.50 | < 2.50 |
Special Info
This test is New York state approved.
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.