Toxo Q2, V
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what family does oak belong to?
what is cause of acute toxicity with oak?
- acute: acorns in the fall
- latent: leaves in the spring
which form of oak poisoning targets the kidney?
how does patient with latent oak leaf toxicity present?
- resembles choke
- rough coat, SQ edema
- oral ulceration, brown nasal discharge
- kyphosis, listless
- discolored urine on day 7; death
what are possible treatments for oak toxicity?
- Calcium can precipitate tannins
- feed good quality hay, activated charcoal
- mineral oil purgatives
what are the main problems associated with grass toxicities?
- mineral accumulation/deficiency
- autonomic agents
which of those toxic principles is associated with johnson grass?
cyanide (incr. respiration, convulsions, death; cherry red blood)
which of the grass toxic principles is associated with sudan grass in horses?
what is the cause of ryegrass staggers as with perennial ryegrass?
what is toxic principle of ergotism?
fungal (alkaloids and lysergic acid derivatives) = alpha blockers and smooth muscle stimulants
Cattle has wild looking face with head tremors and erect ears. Others in the herd are displaying opisthotonis and stiff legged gait. what is the cause and is death likely to occur?
- paspalum species
- if removed early, signs reverse in a week
what is the cause of "summer slump"? what are clinical signs?
- fescue summer toxicosis - fungus/endophyte
- reproductive issues
What family does horsechestnuts and buckeye belong to?
what species is most commonly affected by horsechestnut? what is toxic principle?
- cattle most common
- saponin glycoside; coumarin derivative
what clinical signs are seen with horsechestnut? is it fatal?
- peculiar forelimb gait, saw horse stance and reluctant to move
- irritated membranes, seizures
- not often fatal
what plant contains ketones that cause alveolar injury and lung edema?
perilla mint of lamiaceae family
what can be given to treat perilla mint toxicity?
- atropine may help
- avoid pasture during flowering/fruiting period (late summer)
what plant causes sterile mastitis in cows and myocardial necrosis along with edema of the neck/brisket?
- avocado pear
- (incr. somatic cell count, gelatinous liquid in thorax)
what signs are seen in horses who ingest avocado pear?
- severe facial edema, collapse and death
- ischemic necrosis of tongue/facial muscles
what family does avocado pear belong to?
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