Microfilaria Test

Laboratory Fee Schedule

Procedure:  MPAR012A

CPT: 87015

Microfilaria Test

Synonym(s): Parasitology; filarial worm test; Loa loa test; Wuchereria test; Brugia test
Requisition Form G-2B
Test Description Microscopic morphological examination for the detection and identification of microfilariae
Pre-Approval Needed N/A
Supplemental Information Required Travel history; organism suspected
Supplemental Form(s) N/A
Performed on Specimens from (sources) Human
Sample/Specimen Type for Testing EDTA whole blood
Minimum Volume/Size Required 2 mL
Storage/Preservation Prior to Shipping Ambient temperature or refrigerated
Transport Medium EDTA
Specimen Labeling
  • Two patient-specific identifiers required (e.g., patient full name, date of birth, Medical record number)
  • Identifiers on specimen must exactly match submission form.
Shipping and Specimen Handling Requirements

Ship samples: 

  • according to Dangerous Good Regulations, IATA, and/or CFR 49
  • handling as infectious agent using universal precautions
  • triple-contained in accordance with federal shipping regulations for infectious agents
  • as Biological Substance Category B
  • cold on ice packs
Method Microscopic examination of a concentrate and giemsa stained smears (Knott’s concentration procedure)
Turn-around Time 3 days
Interferences/Limitations Some worms demonstrate periodicity in the bloodstream, so blood draws should be timed according to the organism suspected; call for instructions regarding collection
Common Causes for Rejection
  • No specimen received
  • Expired media
  • No identifiers on container
Additional Information
  • Call Medical Parasitology at 512-776-7560 with questions about specimen collection and handling.
  • Call Lab Reporting at 512-776-7578 with questions about submission forms.
  • Call Specimen Acquisition at 512-776-7569 with questions about shipping.