Parasitology Flashcards

0
Q

Where are most internal parasites picked up?

A

Outside from grazing

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1
Q

Where do most internal parasites live?

A

The GI tracts

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2
Q

What animals are most infected from internal parasites?

A

Young animals

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3
Q

Where do external parasites live?

A

Outside or on the skin of the animal

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4
Q

What are the 6 major GI parasites?

A

Ascarids, strongyles, pinworms, tapeworms, stomach worms, bots.

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5
Q

How often do you usually deworm?

A

Every two months

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6
Q

What horses do Ascarids normally effect?

A

Horses under 3 years

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7
Q

What do Ascarids damage?

A

Lungs and live

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8
Q

How are Ascarids transmitted?

A

Fecal oral transmission

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9
Q

What is the prepared period for Ascarids?

A

12 weeks

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10
Q

How often do you deworm for Ascarids?

A

Every 8-12 weeks starting at 8 weeks of age

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11
Q

What drugs are effective against Ascarids?

A

Pyrantel pano are, fenbendazole, Ivermectin

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12
Q

How are small strongyles transmitted?

A

By feeding on grass containing free living larvae

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13
Q

Where do small strongyles live?

A

Cecum and lg intestine

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14
Q

What is the prepayment period of small strongyles?

A

40 days

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15
Q

How often do you deworm for small strongyles?

A

Every two months

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16
Q

What drugs can you use for small strongyles?

A

Pyrantrl pomoate, ivermectin

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17
Q

Where do large strongyles hang out?

A

Migrate through arteries supplying the messentary and intestines

18
Q

What can large strongyles cause?

A

Aneurisms and blockages and anemia

19
Q

How are large strongyles transmitted?

A

By feeding

20
Q

What is the prepatent period for large strongyles?

A

200-332 days

21
Q

What drugs can be used to treat large strongyles?

A

Ivermectin, thiabendaziole, fenbendazole

22
Q

Where are pinworms found?

A

Adults in colon and rectum, eggs on anus

23
Q

What is the prepatent period for pinworms?

A

5 months

24
Q

What drugs treat pinworms?

A

Pyrantal pomoate and thiabendaziole

25
Q

What can tapeworms cause?

A

Illeocecal impaction and inflammation

26
Q

What is the prepatent period for tapeworms?

A

2 months

27
Q

What is a tapeworms intermediate host?

A

Clover mites

28
Q

What drugs can be used to treat tapeworms?

A

Albendazole, pyrantal pomoate, praziquantel

29
Q

What are summer sores?

A

Migrating stomach worm larvae under the skin

30
Q

What can adult stomach worms cause?

A

Gastritis and gastric tumors

31
Q

What is the prepatent for stomach worms?

A

Two months

32
Q

What treats stomach worms?

A

Ivermectin

33
Q

What causes bot fly eggs to hatch?

A

Horse licking eggs

34
Q

Where so the bot fly larvae live?

A

Pelorus and cardia of stomach

35
Q

What can treat bot flies?

A

Ivermectin, dichlorus, trichlorfon

36
Q

Where would you put a fly strip on a horse?

A

Forelock, main, tail.

37
Q

How are hiring lice treated?

A

Topical

38
Q

How are licking lice treated?

A

Systemically and topically

39
Q

What treatments can be used for lice?

A

Organophosphates, carbonates, pyrethins, and ivormectin for sucking lice.

40
Q

What do mites cause?

A

Mange

41
Q

What does the diagnosis of mites depend on?

A

Area of skin affected.

42
Q

What type of treatment do ticks need?

A

Topical

43
Q

What are the three types of ticks in Washington?

A

Dermacenter albipictus-winter tick
Dermacenter occidentalis- pacific coast tick
Otobius megnini-spinous ear tick