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Clinical Laboratory Techniques > Tapeworms > Flashcards

Tapeworms Flashcards

1
Q

What is the Phylum tapeworms are under

A

Platyhelminthes

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2
Q

Class?

A

Trematoda (flukes)

Cestoda (tapeworms)

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3
Q

Cestoda subclasses

A

Euscestoda (true tapeworm)

Cotyloda

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4
Q

Describe tapeworms

A

Flatworms that lack a body cavity

Hermaphroditic

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5
Q

What is the life cycle of tapeworms?

A

Indirect

Require on an intermediate host

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6
Q

Scolex

A

Head

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7
Q

Acetabula

A

Suckers

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8
Q

Armed/unarmed rostellum

A

Rostrum

Most tapeworms are armed

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9
Q

Neck

A

Growth region

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10
Q

Strobila

A

Body

Proglottids

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11
Q

What are the three types of proglottids?

A

Immature
Mature
Gravid

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12
Q

What does each proglottid have?

A

A male and female reproductive organ

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13
Q

What is a gravid proglottid?

A

A pregnant proglottid

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14
Q

Eucestodes (true tapeworm) Life Cycle

A

Gravid proglottids go into the environment
Embryos are ingested by the intermediate host
Become the metacestode and then adult when they reach the predilection site

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15
Q

What is the metacestode stage in the tapeworm life cycle?

A

Larval form

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16
Q

What do the clients see?

A

Dried proglottids = white rice

Fresh proglottids = cucumber seeds, still moving

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17
Q

Dipylidium caninum

A

Flea tapeworm
Cucumber seed tapeworm
Double-pored tapeworm

18
Q

What is the most common tapeworm found in dogs and cats?

A

Dipylidium caninum

19
Q

What is the predilection site of the Dipylidium caninum

A

The small intestine of dogs and cats

20
Q

How do dogs and cats become infected with Dipylidium caninum?

A

By ingesting fleas

21
Q

What is the prepatent period of Dipylidium caninum?

A

14 to 21 days

22
Q

What is the intermediate host of Dipylidium caninum?

A 
Ctenocephalides felis (cat flea)
Ctenocephalides canis (dog flea)
23
Q

How do we diagnosis a Dipylidium caninum infection?

A

Fecal float

ID the eggs in the packets because it helps ID the specific tapeworm

24
Q

What is the treatment for a Dipylidium caninum infection?

A

Praziquantel

Epsiprantel

25
Q

What do we do to prevent a Dipylidium caninum infection?

A

Flea control

26
Q

Is Dipylidium caninum zoonotic?

A

Yes if the flea is ingested not the proglottids

27
Q

What is it about the Taenia species that makes it hard to differentiate between species?

A

Each genus and species has a very similar ova

28
Q

What is the similar ova in the Taenia species called?

A

“Taenia type”

29
Q

How do you know what Taenia species you are looking at?

A

You can narrow it down by the host

An exact diagnosis can not be made

30
Q

What is the intermediate host for nearly all Taenia spp?

A

Mammals

31
Q

Taenia pisiformis in dogs

A

Known as the Rabbit tapeworm

32
Q

What is the intermediate host of Taenia pisiformis?

A

Rabbit

33
Q

How do dogs become infected with Taenia pisiformis?

A

by ingesting rabbits and hares

34
Q

Taenia taeniaformis in cats

A

Known as the Rodent tapeworm

35
Q

What is the intermediate host of Taenia taeniaformis?

A

Rodents

36
Q

How do cats become infected with Taenia taeniaformis?

A

By ingesting rodents

37
Q

What is the prepatent period of Taenia pisiformis?

A

1-2 months

38
Q

What is the prepatent period of Taenia taeniaformis?

A

1-3 months

39
Q

How do we diagnosis Taenia pisiformis and T. taeniaformis?

A

Fecal float

40
Q

How do we treat Taenia pisiformis and T. taeniaformis?

A

Praziquantel

41
Q

Are Taenia pisiformis and T. taeniaformis zoonotic?

A

No

42
Q

What are the signs and symptoms of a Taenia pisiformis and T. taeniaformis?

A

Itching
Scooting
Potbelly

Clinical Laboratory Techniques (45 decks)

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