Parasitology 2

Question 1

Sedimentation tests

Answer 1

used for parasite stages with high density that won’t float readily (fluke eggs)

Question 2

Baermann test

Answer 2

This is used for infections where larvae are the diagnostic stage (aelurostrongylus, strongyloides). It requires a fresh sample where the larvae are still alive and the larvae then migrate into water after the test sits for 8-24 hours.

Question 3

what nematodes have an esophagus with a bulb?

Answer 3

hatched hookworms and strongyloides

Question 4

do hatched hookworms or strongyloides have a bigger buccal capsule?

Answer 4

hatched hookworms

Question 5

T/F: if you see a larva with kink tail in dogs, probably most likely spurious parasite due to coprophagy

Answer 5

T

Question 6

If a dog is negative on an antigen test for heartworms but you still suspect them what test can you perform? what are you looking for?

Answer 6

a knott test to look for microfileria

Question 7

a dog presents to your clinic with worms coming out of its butt that look like long spaghetti noodles (30-40cm). The owner says the dog vomitted some up earlier. What does the dog have?

Answer 7

roundworms

Question 8

a dog comes in with a fecal sample that looks like it has small grains of rice in it. The owner says they found more of these in the dogs bed along with what looked like chains of them. What parasite is this?

Answer 8

tapeworms

Question 9

IgG indicates a __ infection while IgM is __

Answer 9

IgG indicates a chronic infection while IgM is acute

Question 10

would IgG or IgM be more supportive of a clinical diagnosis?

Answer 10

IgM

Question 11

in cases of giardia diarrhea, what test should you perform?

Answer 11

ZnSO4 float and antigen test

Question 12

what antigen tests are available at reference labs like IDEXX?

Answer 12

hookworm, whipworm, roundworm and flea tapeworm