Filaria Antibody – Serology

Conformément au Règlement de l’Ontario 671/92 de la Loi sur les services en français, les renseignements d’analyses de laboratoire liés à la présente page ne sont offerts qu’en anglais parce qu’ils sont de nature scientifique ou technique et destinés uniquement à l’usage des fournisseurs de soins de santé qualifiés et non aux membres du public.

Specimen Collection and Handling

Specimen Requirements

Test Requested Required Requisition(s) Specimen Type Minimum Volume Collection Kit

Filaria serology, or Filariasis, Wuchereriasis, or Onchocerciasis, Bancroft’s Filaria, or Brugiasis

Blood or serum

5.0 ml blood or 1.0 ml serum

Blood, clotted - vacutainer tubes (SST)

Submission and Collection Notes

1

This test detect antibodies to Filaria. For diagnosis of an infection, thick and thin smears, and EDTA blood for Filaria microscopy is recommended. Refer to the test information sheet for Filaria – microscopy

2

If diagnostic testing is required using serology include all clinical symptoms and date of onset on the General Test Requisition Form.

Timing of Specimen Collection

An acute (collected early after the onset of symptoms) and a convalescent (collected 2-3 weeks later) may be required for laboratory diagnosis.

Limitations

Grossly haemolysed, lipemic, contaminated specimens, CSF and specimens containing anti-coagulant are unsuitable for testing.

Storage and Transport

Label the specimen container with the patient’s full name, date of collection and one other unique identifier such as the patient’s date of birth or Health Card Number. Failure to provide this information may result in rejection or testing delay.

Special Instructions

Centrifuge if using SST. Place specimen in biohazard bag and seal.

Requisitions and Kit Ordering

Test Frequency and Turnaround Time (TAT)

Filaria serology is a Referred Out Test. Samples are sent to the National Reference Centre for Parasitology (NRCP) in Montreal.

Turnaround time is up to 42 days from receipt by PHO Laboratory.

Test Methods

Filaria serology  is performed using Enzyme Immunoassay (EIA) methodology.

Reporting

Results are reported to the ordering physician or health care provider as indicated on the requisition.

Mis à jour le 20 juill. 2020