LA neuro cranial exam 2

Question 1

dummy calf, no maternal bond, from in utero infection, or from genetics in angus

Answer 1

congenital hydrocephalus

Question 2

main clinical signs of rabies in LA?

Answer 2

excessive salivation, aggression, vaccination, 100% mortality.

Question 3

fever, major death in neonates, septic signs, caused from G- bacteria. in neonates it is from FPT. prog is grave. treatment is high [] of antibiotics

Answer 3

bacterial meningitis meningencephalitis

Question 4

CNS injury secondary to vasculitis. multisystemic signs, death in 4-10 days. cause is chlamydiophila pecorum

Answer 4

sporadic bovine encephalomyelitis

Question 5

sporadic bovine encephalomyelitis treatment

Answer 5

oxytetracycline, 30% mortality but lower if treated earlier.

Question 6

histophilus somni causes what?

Answer 6

thromboembolic meningoencephalitis

Question 7

what does TME cause cellularly? mortality rate?treatment? prevention?

Answer 7

apoptosis of endothelial cells. pneumonia, abortion, myocarditis. 90% mortality rate. treatment: florfenicol, oxytet, ceftiofur. only treat if standing.

Question 8

common causes of brain abscesses in cattle

Answer 8

hematogenous, extension through calvarium, cribriform, nose ring placement. very poor prog in food animals.

Question 9

common signs with pseudorabies? cause? diagnoses? prog?

Answer 9

very high fever, extreme itchiness. cause is a-herpesvirus. pig to other animal. lesion is mononuclear encephalomyelitis. viral culture PCR from nasal secretions. 95 % mortality.

Question 10

high fever, keratoconjunctivitis, horrible mucopurulent discharge. ovine herpes virus. attacks vascular endothelium and all epithelial surfaces. dysregulation of T cells. enlarged ln. 95% mortality. majorly affects bison.

Answer 10

malignant catarrhal fever.

Question 11

treatment/prevention for bovine herpesvirus?

Answer 11

most cases are fatal, good vaccine.

Question 12

prion related disease, associated with feeding dead animals to eachother. disease? lesion?

Answer 12

bovine spongiform enecephalopathy. bilaterally symmetric neuronal vacuolation. 100% mortality.

Question 13

what sheep disease is notifiable to the state?

Answer 13

scrapie.

Question 14

common in feedlots. caused by neurotoxin. once neurosigns occur 80-90% mortality.

Answer 14

nervous coccidiosis caused by eimeria

Question 15

two disease from dog related protozoa/parasites

Answer 15

protozoa: protozoal encephalomyelitis
coenurosis GID. taenia

Question 16

most common tox of cattle

Answer 16

lead posioning

Question 17

what is a early sign of vit A deficiency?

Answer 17

night blindness, convulsions, no PLR

Question 18

polioencephalomalacia. lesion? cause? treatment?

Answer 18

softening of grey matter from vit B1(thiamin) deficiency. fairly good recovery with thiamine supplement and SC

Question 19

signs of dementia, depression. may be from toxic plants. fairly poor prognosis.

Answer 19

hepatoencephalopathy

Question 20

what is the treatment for nervous ketosis

Answer 20

dairy cattle. dextrose IV daily. propylene glycol orally.

Question 21

calf, lamb, or kid born completely normal and BAR. quickly dulling, may have FPT or low milk intake

Answer 21

hypoglycemia. supp milk, plasma or dextrose.

Question 22

postmortem diagnosis of vacuolation of neurons and neuropil. cows were falling around

Answer 22

bovine spongiform encephalopathy. prion

Question 23

pigs: in utero, causes cerebellar hypoplasia. in adults causes petechial hemorrhage, vasculitis. can have PI animals

Answer 23

classical swine fever