Which laboratory finding most strongly supports infection with Giardia duodenalis when cyst shedding is intermittent?
Correct answer: B. Repeated faecal examinations
- A. A single negative faecal test
- B. Repeated faecal examinations
- C. A blood smear showing gametocytes
- D. A skin scraping showing mites
Explanation
Giardia cysts may not be shed continuously, so examining faecal samples collected on different days improves detection. A single negative test cannot reliably exclude infection when clinical suspicion remains high.
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About Veterinary Parasitology
Covers protozoa, helminths and arthropods that infect domestic animals, including their morphology, life cycles, hosts, transmission and clinical effects. Questions connect parasite identification with diagnosis, prevention and treatment, and distinguish endoparasites from ectoparasites and definitive hosts from intermediate hosts.
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