Clicker questions Flashcards
Following are associated with Trypanosoma cruzi
a. American trypanosomiasis
b. Armadillos
c. Kissing bugs
d. Chagas disease
e. All of the above
E - all of the above
Which of the following is not known as Nagana?
a. T. brucei
b. Cruzi
c. Congolense
d. Vivax
B - cruzi
Leishmania spp. Lives in macrophages (in the phagolysosome)
a. True
b. False
a - true
Leishmania infantum is
a. Found naturally in dogs in the Old World
b. Found in cats in the New World
c. Has been found in foxhounds in the US
d. A and b
e. A and c
e - a and c
Xenodiagnosis is
a. Serological test similar to ELISA
b. Observational, observing organism on blood smear
c. Test where alternate host is inoculated and then attempting to recover organism
c
Autochthonous infection
a. Indigenous
b. Disingenuous
c. Foreign
d. Infrequent
a - indigenous
Apicomplexan life cycles do not include:
a. Gametogony
b. Sporogony
c. Polyogony
d. Schizogony
e. B and c
c- polyogony
Oocyst of Eimeria sp. Has:
a. 8 sporocysts
b. 4 sporocysts
c. 16 sporozoites
d. 4 sporozoites
e. 1 sporocyst
b - 4 sporocysts
Schizogony will significantly increase number of merozoites?
a. True
b. False
a - true
Clinical signs of coccidiosis include
a. Diarrhea
b. Dehydration
c. Anorexia
d. A and b
e. A, b and c
e - a, b, c
Coccidiosis control may be achieved by
a. Sanitation
b. Chemoprophylaxis
c. Chemotherapy
d. None of the above
e. All of the above
e - all of the above
Eimeria maxima is the most pathogenic of the chicken coccidian
a. True
b. False
b - false
Coccidia Eimeria species are generally shared between host species
a. True
b. False
b - false
Which of the following are effective for treatment of clinical coccidiosis?
a. Amprolium
b. Metronidazole
c. Decoquinate
d. A and b
e. All three drugs listed
a - amprolium
Cryptosporidium is an apicomplexan?
a. True
b. False
a - true
All apicomplexans have an apical complex?
a. True
b. False
a - true
Apical complex does NOT include:
a. Polar ring
b. Conoid
c. Nucleus
d. Micronemes
e. Rhoptries
c - nucleus
Best treatment for a cryptosporidium infections is:
a. Monensin
b. Deccoquinate
c. Supportive therapy
d. Paromomycin
e. Penicillin
c - supportive therapy
At risk groups for Crypto infections include:
a. Veterinary works
b. Day care
c. Immunocompromised
d. Health care
e. All of the above
e - all
Crypto is monoxenous, which is:
a. One required host
b. Two required hosts
c. One required and one facultative
a - one host
Sarcocystis is heteroxenous, which is:
a. one required host
b. two required hosts
c. one required and one facultative
b - two required hosts
Sarcocystis neurona uses the horse as an accidental intermediate ost?
a. True
b. False
a - true
Which of the following is not an intermediate host for Sarcocystis neurona
a. Armadillo
b. Skunk
c. Raccoon
d. Opossum
d - opossum
Which is the definitive host for Sarcocystis neurona
a. Armadillo
b. Skunk
c. Raccoon
d. Opossum
d - opossum
Toxoplasma is shed in cat feces for how long?
a. 2 weeks
b. 4 weeks
c. 8 weeks
d. Forever
a - 2 weeks
Cats become infected with Toxoplasma by
a. Ingestion of oocysts
b. Organ transplant
c. Ingestion of dung beetles
d. None of the above
e. All of the above
a - ingestion of oocyts
Humans may become infected by Toxo
a. Ingestion of oocysts (litter box)
b. Ingestions of under cooked pork
c. Organ transplantation
d. All of the above
e. None of the above
d - all of the above
9 yr old spayed female indoor only cat brought to clinic because client is 4 months pregnant, concerned with toxo, which is NOT appropriate
a. Submit serum sample from cat for toxo titer and recommend euth cat if titer pos
b. Instruct client to only eat cooked meat
c. Encourage client to continue to keep cat indoors
d. No raw meant to cat
e. Someone else change litter box
a - serum sample
Definitive host for Neospora caninum is thought to be
a. Cat
b. Dog
c. Cow
d. Armadillo
e. Human
b - dog
Intermediate hosts for neospora caninum include
a. Horses
b. Cows
c. Sheep
d. All of the above
e. None of the above
d - all
Drugs like the ionophores (lasalocid and monensisn) are thought to be effective for Neospora caninum in cattle?
a. True
b. False
b - false
Neospora caninum infection in cattle causes
a. Weight loss
b. Bloat
c. Sterility in bulls
d. Abortion
e. Chorioretinitis in aged (>10 yrs) animals
d - abortion
Vertical transmission is important in the life cycle of Theileria and Babesia
a. True
b. False
b - false
Smith and Kilborne, along with Curis disovered the life cycle of what in 1893?
a. Theileria parva
b. Theileria annulat
c. B. bigemina
c - b bigemina
Human malaria is still a major disease in the world today
a. True
b. False
a - true
Which mosquiteo genus is the primary vector of himan malaria
a. Culex
b. Anopheles
c. Aedes
b - anopheles
Paroxysms are due to the organisms, plasmodium releasing prodcuts such as hemozin when the shczonts cause the RBCs to rupture
a. True
b. False
a - true
Simulium flies serve as vector for Haemoproteus
a. True
b. False
b - false
Balantidium often uses an anophiline mosquito as a vector (intermediate host)
a. True
b. False
b - false
In severe disease Balantidium coli may be mistaken for Entamoeba coli
a. True
b. False
b - false (histolytical not coli)
Ichthyopthirius multifiliisi, Ich is the most common ectoparasite of aquarium fish
a. True
b. False
a - true
Trophonts live in and are found primarily
a. In or on the skin
b. May be found in the GI tract
c. Attached to rocks and vegetation
d. Other intermediate hosts
a - in or on skin
Encephalitozoon cuniculi (Nosema cuniculi) will be seen primarily in rabbits
a. True
b. False
a - true
Macracanthorhynchus is generally considered to be non-pathogenic
a. True
b. False
a - true
Macracanthorhynchus is best controlled by manipulating the environment
a. True
b. False
a - true
While most flukes are hermaphroditic they still rely on sexual reproduction
a. True
b. False
a - true
The fluke life cycle is typically
a. Egg –> redia –> sporocyst –> redia –> cercaria –> metacercaria –> adult
b. Egg –> miracidium –> sporoyst –> redia –> cercaria –> metacrecaria –> adult
c. Adult –> miracidium –> redia –> cercaria –> metacercaria
d. Adult –> egg –> cercaria –> sporocyst –> redia –> miracidium –> metacercaria
b
Moecious refers to both sexes housed in the same body while diecious refers to each sex housed in a different body
a. True
b. False
a - true
While most flukes are hermaphroditic they still rely on sexual reproduction
a. True
b. False
a - true
Fasciola hepatica is endemic in Minnesota
a. True
b. False
b - false
Which of the following antiparasitic agents is most suitable for use against immature stages of Fasciola hepatica
a. Fenbendazole
b. Ivermectin
c. Praziqu
d. The one that is no longer available (curatem?)
d
Fascioloides magna is endemic in Minnesota
a. True
b. False
a - true
Dicroceoelium dendriticum is endemic in New York and Minnesota
a. True
b. False
b - false
Infection of the definitive host by the rumen fluke is by ingestion of
a. Snail intermediate host
b. Miracidium
c. Cercariae
d. Metacercariae
d - metacercariae
Adults of Paragonimus kellicoti live in
a. Lung parenchyma
b. Liver parenchyma
c. Intestinal lumen
d. Kidney parenchyma
a - lung parenchyma
Paragonimus kellicotti hosts include
a. Mink
b. Aquatic snails
c. Fresh water crayfish
d. Dogs
e. All of the above
e - all
The most prominent diagnostic feature of eggs of Paragonimus kellicottis is
a. Reddish brown color
b. Shoulders that surround the operculum
c. Absence of operculum
d. Absence of color of the shell
b - shoulders around operculum
Paragonimus kellicotti uses two intermediate hosts, they are
a. Aquatic snail and ant
b. Land snail and crayfish
c. Land snail and ant
d. Aquatic snail and crayfish
e. None of the above
d - aquatic snail, crayfish
Alaria is the most common fluke found in dogs in MN
a. True
b. False
a - true
Alaria uses
a. One intermediate host
b. Two intermediate hosts
c. Three intermediate hosts
d. No intermediate host
b - two IH
Prosthogonimus macrorchis may be found in
a. Bursa
b. Small intestine
c. Eye
d. Liver
a - bursa
Prosthogonimus macrorchis uses which of the following as an intermediate host
a. Land snail
b. Aquatic snail
c. Dragon fly
d. A and c
e. B and c
e - b and c
Echinostoma revolutum causes a disease primarily of wild waterfowl
a. True
b. False
a - true
Schistosomes are unique flukes in that they are monecious
a. True
b. False
b - false
Swimmers itch is caused by the penetration of human skin by a bird schistosome
a. Miracidium
b. Sporocyst
c. Redia
d. Cercaria
e. Metacercaria
c - cercaria
Diphyllobothrium latum uses which of the following as intermediate hosts
a. Snails and blugills
b. Dragon fly larvae and salmon
c. Copepods and pike
d. Copepods and annelid worms
e. None of the above
c - copepods, pike
Spirometra mansonoides (adult worms) may be found in which definitive hosts
a. Cats
b. Copepods
c. Amphibians
d. Reptiles
a - cats
Parasitism is a relationship where:
a - where one member benefits while the other neither benefits nor is harmed
b - where an organism lives in or on the body of another organism, at the expense at the expense of that organism
c - where two organisms depend on each other physiologically and both members benefit from the relationship.
b
An obligate host which alternates with the definitive host and harbors a larval stage of the parasite. Usually where asexual reproduction occurs is the:
a - definitive host
b - intermediate host
c - paratenic or transport host
b
Motile feeding form
a - trophozoite
b - cyst
a
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| Most flagellates divide by: a - transverse binary fission b - longitudinal fission</p>
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| B - longitudinal</p>
Schizogony is:
a - nuclear division followed by cytokinesis
b - cytokinesis followed by nuclear division
c - internal budding
d - external budding
a
The amoebae are important parasites in humans as well as dogs
A) True
B) False
a
Naegleria typically infects humans via:
A) ear canal B) nose C) orally D) a and c E) none of the above
b - nose
Entamoeba coli cysts can be differentiated from E. histolytica. E. coli cysts have:
A) 2 nuclei
B) 4 nuclei
C) 6 nuclei
D) 8 nuclei
d - 8
Tritrichomonas foetus is found in what hosts:
A) dogs B) cats C) cattle D) a and b E) b and c
e - b and c
Which of the following trichomonads are sexually transmitted?
A) Tritrichomonas foetus B) Tritrichomonas gallinae C) Trichomonas vaginalis D) a and c E) b and c
d - a and c
Histomonas meleagridis may be transmitted between birds:
A) directly between birds B) in the egg of Heterakis gallinarum C) In an earthworm that ingested a H. gallinarum egg D) All of the above E) None of the above
d - all
Histomonas meleagridis is quite pathogenic in which of the following species
A) chickens
B) cats
C) turkeys
D) pheasants
c - turkeys
Histomonas meleagridis liver lesions may be pathognomonic
A) True
B) False
a - true
Giardia is easily diagnosed?
A) True
B) False
a - true
The following tests are available for the successful ID of Giardia
A) IFA (meriflour) B) Cassette (snap test) C) Fecal flotation ( ZnSO4) D) None of the above E) A, B, and C
e - a, b, c
Which of the following drugs is effective for treating Giardia and has the least toxicity problems associated with its use in dogs and cats?
A) ivermectin B) milbemycin C) metronidazole D) albendazole E) fenbendazole
e - fenbendazole
