RVT - Nematodes

Question 1

Do ascarid/roundworms require an intermediate host?

Answer 1

No however a paratenic host may be present.

Question 2

What common nematode is very hard to eliminate in the environment?

Answer 2

Trichuris vulpis

Question 3

Name a nematode that causes anemia and melena in dogs and cats?

Answer 3

Hookworm

Question 4

What nematode causes hemochezia in cats and dogs?

Answer 4

Whipworm

Question 5

Explain what an occult infection refers to in regard to heartworm infection.

Answer 5

Microfilaria may not be found in blood but can still be there.

Question 6

What are 2 common names for Toxocara canis?

Answer 6

Ascarid

Roundworm

Question 7

What genus of roundworm affects both dogs and cats?

Answer 7

Toxascaris leonina

Question 8

What genus of nematode causes cutaneous larval migrans?

Answer 8

Hookworms

Question 9

What genus of nematode can cause ocular larva migrans?

Answer 9

Toxocara

Question 10

What is the common paratenic host for Toxocara cati?

Answer 10

Rodent

Question 11

What is the scientific name for the Giant kidney worm?
What is the intermediate host?
How is it diagnosed?

Answer 11

Dioctophyme renale
Intermediate host - earthworm
Paratenic host - frogs, fish, crayfish
Diagnosis - Urine sedimentation

Question 12

What is the scientific name of the bladderworm and how is it diagnosed?

Answer 12

Pearsonema plica
Pearsonema feliscati
Diagnosis- Urine sedimentation

Question 13

What are the 3 Hookworm in dogs?

Answer 13

Ancylostoma caninum
Ancylostoma brazilienze
Uncinaria stenocephalia

Question 14

What is the name of the hookworms found in cats?

Answer 14

Ancylostoma tubaeformae

Question 15

Where are nematodes found in the animals body?

Answer 15

Small intestines

Question 16

Where do whipworms attach in the infected animal?

Answer 16

Colon and cecum

Question 17

What is the name of the threadworm?

Answer 17

Strongyloides stercoralis

Question 18

Where in the host would you find Strongyloides stercoralis?

Answer 18

small intestines

Question 19

What is the scientific name of the stomach worm?

Answer 19

Physaloptera

Question 20

What is the scientific name of the esophogus worm?

Answer 20

Spirocerca lupi

Question 21

Which of the hookworms is the one most commonly seen for its zoonotic potential?

Answer 21

Ancylostoma brazilienze

Question 22

What is the scientific name for the eye worm?

Answer 22

Thelazia californiensis

Question 23

12 day old puppies are lathargic and have bloody diarrhea. What 2 possible parasites may have caused this?

Answer 23

Whipworm

Giardia

Question 24

Are nematodes hermaphroditic?

Answer 24

No

Question 25

How are nematode infections diagnosed?

Answer 25

Centrifugal or standard vial

Question 26

What nematode is resistant to all classes of anthelminthics?

Answer 26

Haemonchus contortus ( Barber pole worm)

Question 27

What is oxyuris equi and how is it diagnosed?

Answer 27

Pinworm of the horse | Cellephane tape method

Question 28

How is lungworm in goats and sheep diagnosed?

Answer 28

Baermann technique

Question 29

Which lung worm is found in the nasal cavity of dogs?

Answer 29

Eucoleus boehmi

Question 30

Aerurostrongylus abstructus is what kind of worm and found in what host?

Answer 30

Lung worm in cats

Question 31

What kind of worm is Filaroides osleri and what species is it found in?

Answer 31

Lungworm found in dogs

Question 32

Eucoleus aerophilis is what kind of worm found in what host?

Answer 32

Lungworm of dogs and cats

Question 33

What is the scientific name of the Northern canine hookworm?

Answer 33

Uncinaria stenocephalis

Question 34

What nematode parasite can be transmitted from the dams saliva to the puppies?

Answer 34

Filaroides osleri ( lungworm )

Question 35

Name 5 tests used to diagnose D.Immitis infection?

Answer 35

``` Modified knotts test Elisa Blood smear Buffy coat method Filtration tests ```

Question 36

What is the prepatent period for heartworm?

Answer 36

6-8 months

Question 37

What nematode genera have ova that are often confused with Trichuris vulpis?

Answer 37

Pearsonema feliscati | Eucoleus aerophilus

Question 38

Which nematode parasite of dogs and cats have ova that look like paperclips?

Answer 38

Spirocera lupi

Question 39

What nematode parasite can cause esophageal tumours?

Answer 39

Spirocerca lupi

Question 40

What nematode parasite uses crickets as its intermediate host?

Answer 40

Physaloptera

Question 41

What nematode parasite in cats uses snails as an intermediate host?

Answer 41

Aelurostrongylus abstrusus ( lung worm of the cat)

Question 42

What nematode uses a dung beetle as its intermediate host?

Answer 42

Spirocerca lupi

Question 43

What nematode can be passed through a mothers milk to her puppies?

Answer 43

Hookworm

Question 44

What tests other than fecal flotation can be used to diagnose Filaroides osleri infection in dogs?

Answer 44

Baermann technique | Endoscopy

Question 45

What are Acanthocephalans?

Answer 45

Thorny headed worms

Question 46

What medication is generally used to treat nematode infections?

Answer 46

Fenbendazole | Pyrantel pamoate

Question 47

What is the PPP for Toxocara canis Toxocara feliscati Toxascaris leonina

Answer 47

Toxocara canis- 6 weeks Toxocara cati - 7 weeks Toxascaris leonina - 6-9 weeks

Question 48

What is the PPP for Ancylostoma caninum Ancylostoma tubaeformae Uncinaria stenocephala

Answer 48

A. caninum - 2 weeks A. tubaeformae- 3 weeks Uncinaria - 2 weeks

Question 49

What is the PPP for | Trichuris vulpis?

Answer 49

3 months

Question 50

Do hookworms need an intermediate host?

Answer 50

Not necessary but paratenic host may be present