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Test Catalog

Test ID: FIL    
Filaria, Blood

Specimen Type Describes the specimen type needed for testing

Whole Blood Na Cit

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Container/Tube: Light-blue top (sodium citrate)

Specimen Volume: 4.5 mL

Collection Instructions: Certain of the microfilariae have a nocturnal periodicity, and the blood specimen is best taken at night between 10 p.m. and 2 a.m.

Forms: If not ordering electronically, complete, print, and send a Microbiology Request Form (T244) (

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

2 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected









Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Whole Blood Na CitAmbient (preferred)72 hours
 Refrigerated 72 hours