Content continues after advertisement

Quiz: Fecal Parasite Tests: Antigen Detection, Flotation, & Baermann

Meriam N. Saleh, PhD, Texas A&M University


July 2022
Peer Reviewed

Sign in to Print/View PDF

microscope imaging

Tests for diagnosing parasitic infections include fecal flotation for recovery of parasite eggs, cysts, and oocysts; Baermann examination for recovery of motile larvae; and coproantigen tests for detecting antigen from cysts or select adult nematodes. In-clinic diagnostic tests include fecal flotation, Giardia duodenalis coproantigen tests, and Baermann examination. Adult worm coproantigen immunoassay for Ancylostoma caninum, Toxocara canis, and Trichuris vulpis infections in dogs is only available through external laboratories.1,2

Accurate diagnosis relies on choosing the most appropriate test to recover specific parasite stages; individual tests have varying strengths and limitations that can depend on parasite species. Understanding why a test may have a false-negative result is important; several factors, including life cycle (eg, prepatent period; parasite stage; density of the egg, cyst, or oocyst), can explain a negative result despite parasitosis. 


For global readers, a calculator to convert laboratory values, dosages, and other measurements to SI units can be found here.

All Clinician's Brief content is reviewed for accuracy at the time of publication. Previously published content may not reflect recent developments in research and practice.

Material from Clinician's Brief may not be reproduced, distributed, or used in whole or in part without prior permission of Educational Concepts, LLC. For questions or inquiries please contact us.


Clinician's Brief:
The Podcast
Listen as host Alyssa Watson, DVM, talks with the authors of your favorite Clinician’s Brief articles. Dig deeper and explore the conversations behind the content here.
Clinician's Brief provides relevant diagnostic and treatment information for small animal practitioners. It has been ranked the #1 most essential publication by small animal veterinarians for 9 years.*

*2007-2017 PERQ and Essential Media Studies

© 2022 Educational Concepts, L.L.C. dba Brief Media ™ All Rights Reserved. Terms & Conditions | DMCA Copyright | Privacy Policy | Acceptable Use Policy