Flash Notes Miscellaneous - Parelaphostrongylus Tenuis

Question 1

what animals are often affected by parelaphostrongylus tenuis?

Answer 1

llamas, sheep, goats, & horses

Question 1

what is the classic case presentation of parelaphostrongylus tenuis?

Answer 1

lumbar weakness, ataxia, lameness, circling, stiffness, scoliosis, & paralysis

Question 2

what is seen on CSF fluid from an animal with parelaphostrongylus tenuis?

Answer 2

pleocytosis, elevated protein, & potentially elevated eosinophils

Question 3

how are infections from parelaphostrongylus tenuis diagnosed?

Answer 3

CFS analysis & necropsy

Question 4

what has complicated treatment of parelaphostrongylus tenuis?

Answer 4

anthelmintic resistance

Question 5

how is parelaphostrongylus tenuis treated?

Answer 5

no definitive treatment regimen is established - fenbendazole or ivermectin are most often used

Question 6

what is the prognosis for infection with parelaphostrongylus tenuis? what is a poor prognostic sign?

Answer 6

guarded

recumbency is bad

Question 7

how is parelaphostrongylus tenuis prevented?

Answer 7

avoid exposure to feces of white tailed deer, deer proof fences, & anthelmintics every 30-45 days from spring to fall

Question 8

T/F: parelaphostrongylus tenuis usually causes no symptoms in white tailed deer

Answer 8

true

Question 9

how do white tailed deer get parelaphostrongylus tenuis?

Answer 9

deer ingest infective larva from intermediate host (snails/slugs) or their slime secretions as they graze

Question 10

what are 5 clinical signs in a llama infected with parelaphostrongylus tenuis?

Answer 10

lumbar weakness, ataxia, lameness, stiffness, & circling