Parasit Flashcards
A parasite that must use in intermediate host to complete its lifecycle is considered to have a
Indirect life cycle
A parasite that has both sets of sex organs and both are functional is
Monecious
What will yield larvae in feces
Ovoviviparous
The damage a parasite is capable of producing to its host defines:
Pathology
When scanning a fecal we scan on ____ and ID on ___.
10X
40X
What techniques will you be able to identify Clostridium and/or Campylobacter
Fecal cytology
What term indicates that we will see parasite ova in our sample analysis
Oviparous
PSH is
The potential damage a parasite is capable of doing to the public
PPP is:
The time from the point of infection until a diagnostic stage can be recovered (ova, cysts, or larvae)
A dog eats a rabbit containing a larval stage of a tapeworm. The tapeworm has to go through the rabbit in order to reach adulthood. The rabbit is:
Intermediate host
Parasitosis is
A parasite is present in the host and is exhibiting outward signs of harm
Parasitiasis
A parasite is present on the host and is potentially pathogenic
Pathogenesis is
Damage a parasite is capable of producing to its host
How the parasite enters the host is
Route of infestation
The gross exam, direct smear and flotation are examples of
Qualitative testing
Morphology is
The study of shape
Flatworms belong in what Phylum?
Platyhelminthes
Flukes are also called
Trematodes
When looking at an unstained slide, what position must the condenser in?
Lower
What are three examples of a pseudoparasite
Pollen
debris
grass
What is the term describing a protrusion or an indentation on one or both ends of an oval egg?
Operculum
Name five factors that can cause variation in results
Sex ratio Luck tech error age of sample amount of sample
Parasite that has more than one possible final host is considered
Plural
An animal that harbors a larval stage of a parasite and is necessary to complete the parasites lifecycle
Intermediate host
A parasite that is on and off the host during its lifecycle
Periodic
Parasite that has both male and female sex organs with both being functional
Monoecious
Parasite that attaches at a site within or upon the body in stays there
Stationary
An animals that harbors a parasite but is not necessary for lifecycle completion
Paratenic host
Establishment of a parasite within or upon a host
Infestation
A parasite that has only one set of sex organs
Dioecious
A parasite that can be free living or parasitic for part or all of its life
Facultative
An animal that harbors a parasite final (adult) stage
Final host
A parasite that cannot complete its lifecycle outside of a host
Obligate
A parasite that does not need the use of an intermediate host
Direct lifecycle
Fasciola hepatica is a
Liver fluke
Nanophyetus salmincola is a
Salmon poisoning fluke
Paragonimus kellicotti is a
Lung fluke
What is a gravid proglottid
A mature egg bearing segment
Which tapeworm is reportable to the CDC if detected?
Echinococcus spp
What is an individual segment of a tapeworm called
Proglottid
What is the intermediate host for the Dipylidium caninum
Flea
Which flute is the most economically important fluke in veterinary medicine?
Fasciola hepatica
According to the text, what is the name of the condition fasciola hepatica causes?
Blacks disease
Why is fasciola hepatica so important?
Hemorrhage during migration
What is the intermediate host for Anoplocephala spp. and Moniezia spp.?
Orbatid mite or grain mite
According to the text, if the intermediate host of a tapeworm is an arthropod, the L1 is called:
Cysticercoid
What technique is required for a fecal flotation solution such as ZnSo4:
Fecal flotation
Parasites in the Phylum platyhelminthes are all considered:
Flatworms
The advantages to a fecal cytology include
The ability to see Clostridium and Campylobacter
Tapeworms fall in the Class:
Cestoda
This site of infestation of Nanoyphyetus salmincola is the:
Small intestine
Second intermediate host for Paragonimus kellicotti is the
Crayfish
What is a diagnostic feature of fluke ova
Single operculated
What is a diagnostic feature of Taenia spp. ova?
Radial striations
What is a diagnostic feature of the Dipylidium caninum ova?
Egg baskets
Nanophyetus salmincola is:
HSP for dogs and cats
The final host for fasciola hepatica is:
Ruminants
All flukes require a _____ as an intermediate host
Snail
The head of an adult tapeworm is called the:
Scolex
Dipylidium caninum is:
HSP for dogs and cats
Echinococcus spp. produces a larval stage that is called
Hydatid cyst
Paragonimus kellicotti is commonly called:
Lung fluke
What is known as the cat rat tapeworm?
Taenia taeniaeformis
What is the motile larval stage of flukes that emerges from the ova?
Miracidium
Toxocara canis is in the class
Nematoda
The stain used on a fecal cytology is called
Diff quik
Praziquantel is known by the brand name
Droncit
What type of migration is commonly followed when a Nematoda is ingested by paratenic host
Somatic migration
Ovum morphology for Toxocara spp. includes:
Outer ropey appearance
Final host for fasciola hepatica is:
HSP for ruminants
An oval ovum with an inner ropey appearance found in a cattle fecal float is diagnostic for:
Toxascaris leonina
What type of migration involves the parasite migrating from the intestinal lumen into the mucosal layer then back to lumen
Mucosal migration
Which is the most complex for Nematoda migration involving migrating through the body to ultimately be coughed up and swallow
Tracheal migration
What is the pathonomonic sign in puppies resulting from roundworm infestation
Potbellies
What migration type is most often followed when the final host is an intact female
Somatic migration
Strongid
Pyrantel pamoate
Panacur
Fenbendazole
Cestex
Epsiprantel
Albenza
Albendazole
The ova of what parasite is oval with blastomeres
Hookworms
In large animal medicine, when you see an ovum that is TASE you report in the patient file
+ TASE
PHS for Ancylostoma braniliense includes
Cutaneous larval migrins
The route of infestation for most hookworms is generally
Skin penetration
The final host for Taenia multiceps is
HSS for dogs
An oval ovum with an inner ropey appearance found in a canine fecal float is diagnostic for
Toxascaris leonina
Dictyocaulus spp. fall into what category
Lungworms
What are we primarily looking for when we perform a direct smear
Giardia
Larva
What are we looking for on a fecal cytology
Clostridium
Campylobacter
The final hosts for the 2 species of Bunostomum are
Sheep
Cattle
Eqvalan
Ivermectin
Panacur
Fenbendazole
Droncit
Praziquantel