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VMED 5235: Veterinary Parasitology Review Questions Lect 36-39 Exam Questions and Answers
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VMED 5235: Veterinary Parasitology Review Questions Lect 36-39 Exam Questions and Answers
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VMED 5235: Veterinary ParasitologyReview Questions Lect 36-39 Exam
Questions and Answers
1. Describe the way in which Fasciola hepatica behaves if it
infects horses compared with sheep or cattle. - Correct
Answer ✅a. Patency may be delayed or not reached at all;
aberrant migration to the lungs, SQ, or elsewhere may occur
1. How does Fascioloides magna behave if it infects horses?
Does it behave as it does in white-tailed deer, cattle, or sheep
and goats? - Correct Answer ✅a. Behaves as in cattle:
encapsulation without tract formation (Dead end host)
1. How do we differentiate between Anoplocephala perfoliata
and Anoplocephala magna based on examination of the gross
specimen? Clue: Which species has "lappets" at the base of
the scolex? - Correct Answer ✅a. Anoplocephala perfoliata:
lappets at base of scolex
b. Anoplocephala magna: no lappets
1. What is the preferred predilection site for Anoplocephala
perfoliata tapeworms in horses? - Correct Answer ✅a.
Ileocecal junction; large and small intestine
,VMED 5235: Veterinary Parasitology
Review Questions Lect 36-39 Exam
Questions and Answers
1. What is the intermediate host for Anoplocephala
perfoliata? - Correct Answer ✅a. Free living orbatid mites
1. What is the metacestode stage in the intermediate host for
Anoplocephala perfoliata? - Correct Answer ✅a.
cysticercoids
1. What are the characteristics of the eggs of Anoplocephala
perfoliata? - Correct Answer ✅a. Eggs are 65-90 um in
diameter; passed intermittently and are only found on
standard fecal floatation in about 50% of infected horses;
cyclophyllidean tapeworm (passes proglottids in feces, may
be difficult to find eggs); D shaped eggs with pyriform
apparatus; roughly the same size as strongyle type eggs
1. To increase the sensitivity (the likelihood) of finding
tapeworm eggs in a horse fecal sample in cases where you
suspect a horse to be infected with tapeworms, which
diagnostic method would you use? - Correct Answer ✅a.
Centrifugation; Serum ELISA (?)
, VMED 5235: Veterinary Parasitology
Review Questions Lect 36-39 Exam
Questions and Answers
1. Which drug is the treatment of choice for tapeworms in
horses? If the drug of choice is not available, which drug may
be used and at what dosage? - Correct Answer ✅a.
Praziquantel is current treatment of choice
b. Double "strongyle" dose of pyrantel pamoate
1. How frequently should horses be treated for tapeworms? -
Correct Answer ✅a. Treat once per year
1. List the parasites of horses that are found in the stomach,
small intestine, large intestine, or respiratory tract in their
adult stages? - Correct Answer ✅a. Stomach
i. Habronema muscae
ii. Habronema microstoma
iii. Draschia megastoma
iv. Trichostrongylus axei
b. Small intestine
i. Strongyloides westeri
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