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Related Experiment Videos

Diagnostic parasitology.

W J Foreyt1

  • 1Department of Veterinary Microbiology and Pathology, Washington State University College of Veterinary Medicine, Pullman.

The Veterinary Clinics of North America. Small Animal Practice
|September 1, 1989
PubMed
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Diagnosing parasitic infections in small animals relies on recognizing parasite stages using size, morphology, and microscopy. Various fecal, blood, and tissue diagnostic techniques are employed, with serological tests offering supportive evidence.

Area of Science:

  • Veterinary Parasitology
  • Diagnostic Pathology
  • Small Animal Medicine

Background:

  • Parasitic infections pose diagnostic challenges in small animals.
  • Accurate identification of parasite stages is crucial for effective treatment.
  • Microscopy and specific diagnostic techniques are essential tools.

Purpose of the Study:

  • To review and summarize various diagnostic techniques for parasitic infections in small animals.
  • To highlight the importance of size, morphology, and microscopy in diagnosis.
  • To provide an overview of methods for gastrointestinal, blood, and tissue parasites.

Main Methods:

  • Fecal flotation techniques (sugar solution, McMaster)
  • Direct smear, merthiolate-iodine-formalin (MIF) method

Related Experiment Videos

  • Baermann technique, direct sedimentation, ether-formalin-sedimentation
  • Blood smear analysis (Knott's test, hematocrit method)
  • Tissue impression smears, biopsy, aspirates
  • Analysis of body fluids (peritoneal, thoracic, spinal)
  • Serological testing

    • Main Results:

    • Fecal flotation is routine for gastrointestinal parasites; sugar solution (specific gravity 1.27) is effective.
    • Specific methods exist for Giardia, lungworms, trematodes, and protozoan cysts.
    • Blood analysis detects microfilariae and protozoa like Babesia and Hepatozoon.
    • Tissue smears and fluids aid in diagnosing Leishmania and Pneumocystis.
    • Serological tests serve as valuable supportive diagnostic tools.

    Conclusions:

    • A comprehensive array of diagnostic techniques is available for small animal parasitic infections.
    • Selection of the appropriate technique depends on the suspected parasite and sample type.
    • Accurate diagnosis is foundational for successful therapeutic interventions.