What common parasites are classified as Arachnids?
Ticks and mites
What are the two kinds of lice?
Biting (Mallophaga) or sucking (Anoplura)
What are the physical differences between biting and sucking lice?
Biting life have a large head in relation to their thorax, whereas sucking live have a large thorax in relation to their head for blood storage. Sucking live are a reddish color where biting lice appear more yellow.
A biting louse, Trichodectes canis
A sucking louse. Lingonathus setosus
A cat has lice. It is either Trichodectes canis or Lingonathus setosus. Which one is it and why?
It is Trichodectes canis as sucking lice (Lingonathus setosus) is not found on cats.
What is a biting lice other than Trichodectes canis that is found in cats?
How might you be able to tell if a dog had Linonathus setosus vs. Trichodectes canis?
The dog may become very anemic and have very low energy. In extreme cases Lingonathus setosus can cause death.
How do you diagnose pediculosis?
Examine coat for nits and adult lice, examine hair plucks for nits under the microscope.
How can you treat pediculosis?
Most treatments for fleas and ticks will also kill lice. You might choose to use an ivermectin or selamectin product. You must also be sure to clean all fomites.
Where do cuterebra tend to lay their eggs?
Near rodent dens.
How does cuterebra affect an animal?
The eggs of the cuterebra attach themselves to passing animals and when they hatch into larvae they will make their way to a natural opening on an animal such as the anus or nose. They will then migrate to subcontaneous regions.
Is cuterebra zoonotic?
Are fleas insects or Arachnids?
What is the most common species of flea found in cats and dogs?
What is the binomial name for the dog flea?
What are fleas a vector of?
Dipylidium caninum (tapeworm)
What are the life stages of a flea?
Egg, larvae, pupae, adult.
What conditions will stimulate a flea pupa?
Heat, carbon dioxide and vibrations. Vacuuming is a good stimulant.
What is "Flea Dirt"?
Flea feces, digested blood.
How can you tell if dirt on an anmal is "flea dirt" or just regular dirt?
Flea dirt will turn reddish when hydrated as it is digested blood.
If you found tapeworm segments in your dogs fur, what might this be an indication of?
A flea infestation as fleas are a vector for tapeworms.
What are some signs that an anmial might have a flea infestation?
Puritis, anemia and dermititis.
What are some common treatments for fleas?
Spot on solutions such as Frontline (fipronil), Advantage (imidiclopramid), or Revolution (selamectin).
If an animal is diagnosed with a flea infestation, what should you insruct the owner to do at home?
Treat the home environment, and clean all fomites.
Are ticks arachnids or insects?
What is the binomial name for the American Dog Tick?
What is Dermacentor variabilis a vector for?
Rockey mountian spotted fever
What is the common name for Ixodes scapularis?
Black Legged Deer Tick.
What kind of tick is a vector for Lyme Disease?
Ixodes scapularis (Black legged deer tick)
What is the most common tick in the world?
Rhipicephalus sanguines (Brown Dog Tick)
What is the common name for Rhipicephalus sanguines?
Brown Dog Tick.
What is the binomial name for the Lone Star Tick?
What is the Lone Star Tick a vector of?
Ehrlichiosis and Tularemia
What are the life stages of a tick?
Egg, larva, nymph, adult.
Where are ticks often found?
In brush areas, deciduous forests, tall grasses and overgrown pastures.
How long can an adult tick survive without a blood meal?
Are ticks active in winter?
No, they become active again in spring with increasing light and temperatures over 5 degrees.
What is the most common time of years for ticks to "quest"?
Questing usually happens in spring and fall.
What are some signs of a tick infestation?
Sometimes none, often the tick will become engorged and you will feel it or see it, usually in a sparsely haired area. Other signs are diseases that are transmitted by ticks.
How do you diagnose a tick infestation?
How should you treat a tick infestation?
Remove the tick from the animal, using forceps and pulling straight out, being sure not to leave any part of the tick behind. Place the tick in alcohol if you need to ID it.
What kind of parasite is a Mite?
Mites are arachnids.
What is the parasite responsible for Sarcoptic Mange?
What are the clinical signs of a mite infestation?
Puritis, lesions from chewing and scratching, alopecia, complete preoccupation with scratching.
How can you diagnose Sarcoptes spp.?
Deep skin scrapings, response to treatments, or in sever cases a skin biopsy.
What are some common treatments for mites?
Ivermectin, selamectin, moxiedectin, milbemycin.
Is sarcoptic mange caontageous?
What animal is the definitive host for Notoedres cati?
How do you diagnose Notoedres cati?
Multiple skin scrapings.
Where do you find Demodex spp.?
In the hair follicles and sebaceous glands.
How long is the life cycle of Demodex spp.?
What is demidicosis?
An infestation of Demodex spp.
How do you diagnose Demodicosis?
Multiple deep skin scrapings, skin biopsy.
What are some common treatments for Demidicosis?
Treatment can be long, you should always spay /neuter the animal so they do not pass on the underlying reason for the infestation. Treat with medicated shampoo, antibiotics, and ivermectin.
What strains of Demodex cause Demodicosis in felines?
Demodex cati, Demodex gatoi.
What is a common name for Cheyletiella spp.?
fur mite or walking dandruff
What are some clinical sings of Cheyletiella spp.?
Excessive dandruff, Puritis, crusting may occur.
How can you tell if an animal has Cheyletiella spp. Or just bad dandruff?
Brush some dandruff onto black paper and watch to see if it moves, or use clear scotch tape to look at the dandruff under the microscope to see if it it actually mites.
What is the common name for otodectes cynotis?
What are some clinical sings of ear mites?
Sever Puritis of the ears, brown debris in the ears.
Otodectes cyantois (Ear mites)
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