Exam III - Dictyocaulus filaria

Question 1

What are the common names for Dictyocaulus filaria?

Answer 1

lungworm; Husk hook; verminous pneumonia

Question 2

Who does Dictyocaulus filaria infect?

Answer 2

equids, cattle, goat and sheep

Question 3

Does Dictyocaulus filaria have a direct or indirect life cycle?

Answer 3

direct

Question 4

With Dictyocaulus filaria L1 is found in the feces so what test do you run to Id the Parasite?

Answer 4

Baermann

Question 5

What is the infective stage for Dictyocaulus filaria?

Answer 5

L3

Question 6

what is the PPP for Dictyocaulus filaria?

Answer 6

3-5 weeks

Question 7

T or F

development of immunity with age is common with Dictyocaulus filaria.

Answer 7

True

Question 8

what is the classic CS to see with Dictyocaulus filaria & what should a vet be worried about when txing this parasite?

Answer 8

dry unproductive cough at rest is most common; squeaks & crackles over the posterior lung lobes on auscultation

• larval stages of migration can cause alveolitis followed by bronchiolitis
• pneumonia can occur with asperation of the L1 & eggs

worry about the dead parasites still in the lungs after tx has killed them they can exaspaerate the CS’s and Dz of the lungs.

Question 9

what is the common pressentation for the heavily infectted animal with Dictyocaulus filaria?

Answer 9

Air-hunger - gasping for air (orthopnic posture)