35 Questions
What is the method used to identify fleas?
Coat brushing/combing
Which type of mites are found below the skin surface?
Deep mites
What is the method used to identify lice?
Stained acetate tape strip
Which method is not used to identify surface mites?
Microscopy
Which method is used to identify Demodex?
Hair pluck
What is the sensitivity of hair pluck for Demodex?
Low sensitivity
Which method is used to identify Psoroptes in sheep?
Serology
Which method is used to determine if it is a chewing or sucking louse?
Microscopy
What is the recommended method to identify cheyletiella?
Trichogram
Which of the following mites is known to cause scaley leg or scaley beak in birds?
Knemidocoptes
Which of the following is NOT a surface mite?
Neotrombicula
Which mite is highly host specific and not contagious?
Demodex
Which mite can be detected within two weeks of contact, potentially prior to the appearance of clinical signs?
Sarcoptes
Which mite can cause false positives in flea IgE serology due to occasional cross-reactivity with anti-house dust mite antibodies?
Psoroptes
Which type of lice infests cattle, sheep, goats, and dogs?
Linognathus
Which type of lice infests cats?
Felicola
What is the minimum number of skin samples recommended for examination?
6
How often should skin scrapes be repeated to monitor treatments for canine/feline demodicosis?
Monthly
What is the sensitivity of skin scraping for detecting sarcoptes mite infestation?
50%
Which mite is the cause of 'scaley leg' and 'scaley beak' in birds?
Knemidocoptes
Which mite is highly host-specific and not contagious, except for D. gatoi?
Demodex
Which mite is not round in shape?
Demodex
Which mite is cigar-shaped?
Demodex
Which mite is responsible for pruritic cow?
Damalina spp
Which mite causes patchy alopecia in dogs?
Demodex
Name two methods used to identify fleas.
Coat brushing or combing, wet paper test
What is the recommended method to identify cheyletiella?
Trichogram – egg on hair
What method is used to identify Psoroptes in sheep?
Serology
Which mites are round in shape?
Sarcoptes, notoedres, trixacarus and Knemidocoptes
What is the cause of 'scaley leg' and 'scaley beak' in birds?
Trixacarus (common), Knemidocoptes (Cnemidocoptes)
What is the mite responsible for causing patchy alopecia in dogs?
Demodex
What is the mite responsible for pruritic cow?
Damalina spp
What is the potential for false positives in the detection of sheep scab infestation?
Occasional cross-reactivity with anti-house dust mite antibodies and environmental atopics can lead to false positives.
How can skin scrapes be used to monitor treatments for canine/feline demodicosis?
Repeat monthly and treat until two consecutive sets of negative scrapes are obtained. Scrapes should be taken from the same sites each time.
What is the recommended method to distinguish Psoroptes from other surface mites?
Psoroptes mites have a jointed pretarsus/pedicel at the distal end of the leg and a funnel-shaped sucker, while other surface mites have a short, unjointed pretarsus/pedicel and a cup-shaped sucker.
Test your knowledge on the steps involved in diagnosing parasites. Learn how to select the appropriate tests, collect samples, and identify the parasites. Sharpen your skills in parasite identification with this quiz!
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