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ectos mites vet
test 3 diagnostics - mites
| Question | Answer |
|---|---|
| mite larvae legs | 6 |
| mite nymph legs | 8 |
| mite life cycle | egg, larvae, nymph, adult |
| mites identified by | specific morphologic structures associated with the end of their legs, shape, or host range |
| end of mite legs | pretarsi |
| pretarsi contains | stalk and terminal sucker |
| stalk | pedicle |
| terminal sucker | caruncle |
| pedicles may be | long or short |
| long pedicles may be | straight or jointed |
| two families of sarcoptiform mites | sarcoptidae, psoroptidae |
| sarcoptidae | burrow or tunnel within epidermis |
| psoroptidae | reside on surface of skin or within external ear canal |
| sarcoptidae species | sarcoptes, notoedres, cnemidocoptes |
| psoroptes species | chorioptes, psoroptes, otodectes |
| miscellaneous mites | demodex, cheyletiella |
| scabies mite | sarcoptes scabiei |
| sarcoptes scabiei mites found | ears, hock, lateral elbow, muzzle, ventral abdomen |
| new generation of sarcoptes scabiei | 3 weeks |
| sarcoptes scabiei signs | pruritus, alopecia, thickening of skin and crust formation |
| sarcoptes scabiei most commonly affects | dogs and pigs |
| face mange | notoedres cati |
| notoedres cati known as | face mange, feline mange mite, notoedric mange |
| notoedres cati infests | ears, progresses over head, then body |
| notoedres cati found on | kittens, cats, rabbits |
| scaly leg mite | cnemidocoptes |
| cnemidocoptes causes | skin scales in birds |
| cnemidocoptes seen | using hand held lends on underside of scale |
| foot and tail mange mites of ruminants and horses | chorioptes |
| species of chorioptes | c. equi, c. bovis, c. caprae, c.ovis |
| chorioptes can be transmitted by | fomites |
| scab mites of large animals (sheep, cattle, goats) | psoroptes |
| psoroptes feed on | lymphatic fluid |
| psoroptes mites usually found on | dry, crusty regions or under scab |
| scab mite of sheep | psoroptes ovis |
| psoroptes ovis affects | all parts of body covered by wool or hair |
| psoroptes ovis irritation leads to | progressive emaciation and death |
| ear canker mite of rabbits | psoroptes caniculi |
| psoroptes caniculi found | in external ear canal of rabbits |
| rabbits with psoroptes caniculi have | ear packed with 'dried cornflakes' |
| ear mite of dogs, cats, ferrets | otodectes cynotis |
| OTC products need to be | used for 21 days, can cause toxic reactions |
| treatment with product like Tresaderm | 10-14 days, kills developing mite eggs, and adults |
| one step ear mite treatment | acarexx |
| demodex resides | in hair follicles and sebaceous glands of people and most animals |
| demodex is | host specific |
| increased number of demodex mites | demodicosis |
| topical demodex lotion | goodwinol ointment |
| walking dandruff | cheyletiella |
| cheyletiella inhabits | dog, cat, rabbit, wildlife, man |
| cheyletiella primarily dorsal | manifested by dry or greasy scales, lesions over rump and shoulder |
| find mites by | clear cellophane tape, then view with scope |
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