15 - neurologic systemic disease

Question 1

(listeriosis)

1. caused by what?
2. usual source of infection?
3. path?

Answer 1

1. listeria monocytogenes
2. contaminated feed
3. entry through mouth abrasions/loss of teeth -> infection of nerve endings of trigeminal nerve -> infection in brainstem

Question 2

(listeriosis)

1. Cx?
2. tx?
3. prog?

Answer 2

2. penicillin
3. poor

Question 3

Question 4

Question 5

Question 6

(lead toxicoses)

1. exposed by licking or chewing lead-containing materials or drinking contaminated petroleum distillates
2. path: inhibition of a-aminolevulinic acid dehydrase; cerebral necrosis, swelling, neurotransmitter dysfx, decreased glucose uptake
3. Cx?
4. Dx?
5. tx?

Answer 6

3. blindness, ataxia, and depression
4. whole blood and bone assay
5. EDTA, thiamine

Question 7

(infectious thromboembolic meningoecephalitis)

1. cause?
2. path?
3. Cx?
4. tx?

Answer 7

1. histophilus somni
2. mutiple septic embolism in CNS -> vasculitis, encephalitis
3. depression, dementia, recumbency, weakness, ataxia, blindness, opisthotonus, nystagmus
4. long acting antimicrobials, immunization, prog = poor

Question 8

(nervous coccidiosis)

Question 9

Answer 9

Question 10

Answer 10

Question 11

Question 12

Answer 12

Question 13

Question 14

Question 15

Answer 15