Roundworms & Hookworms

Question 1

Phylum; includes ascarids, hookworms, and
whipworms.

Answer 1

Nematodes

Question 2

Refers to those within the family ascarididae.

Answer 2

Ascarid

Question 3

Can be used to refer to nematodes as a whole,
although many times used specifically for ascarids

Answer 3

Roundworms

Question 4

The infective stage is the development stage of the parasite that can cause the
infection.

For many parasites, this would be the ____ stage.

Answer 4

L3

Question 5

Canine roundworm scientific name and definitive host

Answer 5

Toxocara canis

Canines

Question 6

Toxocara canis adults reside in the
____ _________ and feeds on
______ contents. This can
deprive the host of nutrients.

Answer 6

small intestines, intestinal

Question 7

Toxocara canis signs/symptoms

Answer 7

Pot-bellied appearance
Vomiting/diarrhea
Poor growth

Question 8

Toxocara canis transmission

Answer 8

Fecal-oral
Ingestion of paratenic host
Transmammary
Transplacental

Question 9

Toxocara canis lifecycle and prepatency period

Answer 9

direct, 3-4 weeks

Question 10

Toxocara canis diagnosis

Answer 10

Fecal floats

Gross examination of adults in
stool

Question 11

Toxocara canis treatment

Answer 11

Pyrantel pamoate
Fenbendazole

Question 12

Toxocara canis zoonotic potential, zoonosis

Answer 12

Yes, VLM, OLM, NLM

Question 13

Can migrate to
various internal organs (liver is a favorite)

Answer 13

Visceral larval migrans

Question 14

Can migrate into the
eye. The anterior chamber is a very common
location.

Answer 14

Ocular larval migrans

Question 15

Can migrate into the
spinal cord or other nervous structures.
Potentially very damaging and can be fatal.

Answer 15

Neural larval migrans

Question 16

Canine and feline roundworm scientific name and definitive host

Answer 16

Toxascaris leonina, canines/felines

Question 17

Toxascaris leonina predilection site and signs/symptoms

Answer 17

small intestines

Pot-bellied appearance
Vomiting/diarrhea
Poor growth

Question 18

Toxascaris leonina transmission and lifecycle

Answer 18

Fecal-oral
Ingestion of paratenic host

Direct

Question 19

Toxascaris leonina prepatency period and diagnosis

Answer 19

8 weeks

Fecal floats
Gross examination of adults in
stool

Question 20

Toxascaris leonina treatment

Answer 20

Pyrantel pamoate
Fenbendazole

Question 21

Toxascaris leonina zoonotic potential and zoonosis

Answer 21

none, none

Question 22

canine hookworm scientific name and definitive host

Answer 22

Ancylostoma caninum, canines

Question 23

Ancylostoma caninum predilection site

Answer 23

small intestines

Question 24

Ancylostoma caninum signs/symptoms

Answer 24

Vomiting/diarrhea
Melena
Anemia

Question 25

Ancylostoma caninum transmission

Answer 25

Fecal-oral Ingestion of paratenic host Transdermal Transmammary

Question 26

Ancylostoma caninum lives in the small intestines and feeds on ______ and ______ at the site of their attachment.

Answer 26

blood and tissue

Question 27

This parasite can burrow into skin as a form of transmission (transdermal.)

Answer 27

Ancylostoma caninum

Question 28

Adult hookworms can feed up to ___ mL of blood per 24 hours.

Answer 28

0.1

Question 29

Ancylostoma caninum lifecycle and prepatency period

Answer 29

direct, 18-28 days

Question 30

Ancylostoma caninum diagnosis

Answer 30

Fecal float Gross examination

Question 31

Ancylostoma caninum treatment

Answer 31

Pyrantel pamoate Fenbendazole

Question 32

Ancylostoma caninum zoonotic potential and zoonosis

Answer 32

YES, cutaneous larval migrans

Question 33

feline hookworm scientific name and definitive host

Answer 33

Ancylostoma tubaeforme, felines

Question 34

Ancylostoma tubaeforme predilection site

Answer 34

small intestines

Question 35

Ancylostoma tubaeforme signs/symptoms

Answer 35

Vomiting/diarrhea Melena Anemia

Question 36

Ancylostoma tubaeforme transmission

Answer 36

Fecal-oral Ingestion of paratenic host Transdermal

Question 37

Ancylostoma tubaeforme lifecycle and prepatency period

Answer 37

Direct, 18-28 days

Question 38

Ancylostoma tubaeforme diagnosis

Answer 38

Fecal float Gross examination

Question 39

Ancylostoma tubaeforme treatment

Answer 39

Pyrantel pamoate Fenbendazole

Question 40

Ancylostoma tubaeforme zoonotic potential, zoonosis

Answer 40

Yes, CLM