RUSVM Parasitology > Exam 1 > Flashcards
Exam 1 Flashcards
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Kittens come into the practice and come up positive for toxacara cati. The client asks how the kittens got it and if they can get it from the cats. What is your reply?
Transmammary, per os, or paratenic host. (NOT TRANSPLACENTAL)
it is zoonotic
Puppies come in for a second visit after being treated for toxacara canis. They no longer have pneumonia, but are still having intestinal issues and have pot bellies. upon fecal examination you see several oval eggs with a thick smooth shells. What is your diagnosis?
toxacaris leonina
You walk into a horse breeding facility with complaints from the owner about coughing horses and decreased thriving of foals. The farmer treats regularly with anthelmics and now some of the horses are obstructed, but not all. What do you suspect?
parascaris equorum
What are the paratenic hosts for ascaris suum?
earthworms/dung beetles
You are working at a wildlife rehab center that primarily rehabilitates racoons. You have to wear PPE to protect yourself and your dog at home from which parasite?
Baylisascaris procyonis
A farmer walking the morning rounds of his outdoor exclusive pig farm come across a dead pig that he wants you to necropsy. You find evidence of lesions in the lungs along with signs of nasal discharge. You ask the farmer if any of the other pigs are coughing. Why? What is the common name of the parasite you suspect?
because you suspect metastrongylus spp.
pig lungworm
You get a call from a local breeder freaking out about her young dogs dry coughing, having difficulty breathing, and being anorexic. You want to treat with Benzimidazole because you diagnosed what from the centrifuge fecal?
diagnosed filaroides (oslerus) osleri from the “kinked tail” on the L1.
What type of life cycle does angiostrongylus crenosoma use to infect older dogs?
indirect life cycle
You are at a zoo where there are captive free roaming white tailed deer. The zoo moves camels to an adjacent pen for animal care convenience. The close quarters allows for some cross contamination between the pens and the zoo staff begin to notice the camels exhibiting neurologic symptoms. What is the intermediate host for this disease?
mollusc
Life cycle of aelurostrongylus abstrusus?
indirect
females nest in lungs forming grayish nodules
L1 coughed up swallowed and passed
L1 picked up by mollusc develops to infective L3
P host eats intermediate host/cat eats intermediate host
Cat eats P host with infective L3
Which lung worm has the most indirect life cycle and is characterized by the “leadshot” nodular lesions?
mullerius spp.
main problem parasite in horses due to the anthelmintic resitence
cyathostomins
The larval form of this large strongyle is the most pathogenic where as the adult form of this large strongyle is the least pathogenic.
strongylus vulgaris
True or false?
Ruminants with oesophagostomum spp. display anorexia, and decreased milk production
false
anorexia and diarrhea
What is the paratenic host of the Gapeworm?
earthworms
The PPP of this large strongyle is 11 months and the larva migrate through the liver, abdominal tissue, portal vein, and subperitoneal CT. In acute infections horses display fever and anorexia whereas in chronic cases they have intermitted colic. Name the nematode!
Strongylus edentatus
This horse large strongyle is controllable with MCL’s and has a direct infective L3 life cycle.
strongylus equinus
You own a practice in northern Maine and a new client comes in with their rescued puppy. The puppy was treated for uricinaria stenocephala due to the presentation dermatitis and slight anemia. The problem has not gone away and now the puppy is more anemic and having boughts of diarrhea. You recheck the history and find that the puppy was rescued from down south. How does this change your diagnosis?
Now suspect warm weather ancylostoma caninum because it is a warm climate hookworm that exhibits anemia, disarrhea, and dermatitis.
A client’s cat comes back with ancylostoma tubaeforme and they have children in the house who play with the cat all of the time. What is the concern?
it is zoonotic
What is the most zoonotic hookworm that infects a dog and cat host.
Ancylostoma braziliense
Which hookworm can be identified by its 2 cutting plates and 1 small pair of teeth?
uricinaria stenocephala
A client and their young child bring in a litter of golden doodles for their first appointment. You notice that the puppies are a bit pot-bellied and there is some loose stool in the carrier, but the owner claims that they are just big pups. You notice the young child is scratching a lot at her feet and on closer examination you see evidence of visceral larval migrans. What do you think you should treat the puppies for?
toxacara canis
What anthelmntic resistent parasite causes anemia, bottlejaw and lethargy during an acute infection in sheep and goats?
haemonchus contortus
What is the PPP of trichostrongylus spp.
21-28 days
What is the common name of the most important cattle parasite in the U.S. due to its increased longevity in cow feces microclimate?
brown stomach worm
Which lung worm is the reason why you should not house donkeys and horses in the same pasture?
dictocaulus arnfieldi
You are in your clinical year in ireland and you go to a sheep farm to do a call about the sheep having intermittent diarrhea and progressive weight loss. What is the first parasite you test for?
Teladorsagia circumcincta
Are you going to test for the barber pole worm in cattle if you are looking at a cow in Canada?
no haemonchus placei is a tropics worm.
You are in a temperate climate and looking at a herd of weanling cattle. Because you are not in the tropics can you disregard a diagnosis of Cooperia spp.?
no because it is the number 1 weanling cattle nematode and there is evidence of cooler climate migration in the cattle parasites
Another vet is consulting you about a case. It is springtime post lambing and the farmers have been complaining about sudden onset diarrhea killing off 20% of their lambs. Before they loose more they contact the vet who finds large eggs on the fecal float. What treatment do you recommend when consulted?
Prophylactic dewormer and moving the sheep to a new pasture in order to combat Nematodirus spp.
What is the common name of the seasonal trichostrongyloidea that causes lamb carcasses to be dehydrated and have disruptions in the intestinal mucosa?
long neck bankrupt worm
Europe has a vx that prevents this cattle parasite which symptoms are coughing at rest, post patent parasitic bronchitis, and aspiration of dead worms
dictyocaulus viviparus
You have a herd of sheep and goats living together. For the first week or so all of the animals are doing great. By a month into housing together some of the animals have developed bronchitis and you notice that the goats are being more effected than the sheep. A couple months go by and some animals develop into full blown pneumonia. What do you suspect they have?
dictyocaulus filaria
True or false?
Pigs with hyostrongylus rubidus exhibit anorexia, decreased BCS’s, anemia, and watery diarrhea.
False all true except there is no diarrhea
