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Final
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160
Veterinary Medicine
Graduate
11/29/2014

Additional Veterinary Medicine Flashcards

 


 

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Term
what is the mechanism of action for sodium ion toxicosis?
Definition
decreased h2o intake--> dehydration (Na in blood increase)-->glycolysis and energy production inhibited-->active transport shut down (Na can't get out of CSF)--> brain draws water in by passive diffusion-->brain swelling and edems
Term
clinical signs of Na Toxicosis
Definition
1. thirsty
2. constipation, wandering, cession of eating
3. convulsive seizures (every 7 min)
4. continual seizures
5. recumbent and comatose
Term
Na toxicosis sings specific to cattle
Definition
1. GI signs (diarrhea, abd pain, anorexia)
2. Neuro signs (blind, knuckling, rear feet dragging, convulsions)
Term
Na toxicosis signs specific to swine
Definition
develope eosinophillic meningioencephilitis
-eosinophils line cerebral cortex and adjacent menenges (gone after 3 days)
-gastric irritation
Term
Dx for Na toxicosis
Definition
1. hx of limited water
2. clinical signs
3. Na content in serum and CSF
4. cerebral concentration >2200 ppm
5. cerebral lesions
Term
what causes cerebral lesions in swine with Na toxicosis?
Definition
eosinophils clog at vessels in cerebrum
Term
what are differentials for Na toxicosis?
Definition
1. pseudorabies
2. chlorinated hydrocarbon insecticides
3. gut edema disease
Term
what is the Tx for Na toxicosis?
Definition
give small amounts of water frequently
*not very rewarding
Term
what happens when inorganic arsenicals or aliphatic organics are consumed?
Definition
1. vomiting
2. bloody diarrhea
3. weakness
4. shocky
5. death
Term
what are phenylarsonic compounds
Definition
animal feed addatives for dz control and improved weight gain in pigs and poultry
Term
what chemicals fall under the phenylarsonic compound catagory?
Definition
1.arsanilic acid
2. arsonic acid
3. nitro
Term
at what levels does poisoning occur with phenylarsonic compounds?
Definition
100 ppm for 2 months or 250 ppm in 10 days
Term
what signs are produced with phenylarsonic poisoning?
Definition
1. ataxia
2. paralysis
3. blind
4. continue to eat
5. red skin (white animals)
Term
what lesion is produced with phenyl poisoning?
Definition
-degeneration of mylin in optic nerve
-axonal degeneration in peripheral nerves
Term
How do you Dx phenyl toxicosis?(4)
Definition
1. ataxia and paralysis
2. continued eating
3. elevated feed arsenic level (>250 ppm arsanillic acid, >100 ppm nitro)
4. sections of nerves
Term
what are differentials for phenyl toxicosis (4)
Definition
1. fracture, trauma, Ca:P imbalances
2. Vit B deficency
3. Hg poisoning
4. Na ion toxicity (convulsions, wont eat)
Term
what plant contains glossypol?
Definition
tiny glands inside cotton seed
Term
when do signs occur with glossypol toxicosis?
Definition
weeks to months
Term
what are the sings associated wiht glossypol toxicosis? (5)
Definition
1. ventral edema
2. resp distress (thumpers in pigs)
3. convulsiond
4. decreased conception rates and milk production
5. death
Term
glossypol lesions (5)
Definition
1. edema and fluid in body cavities
2. fluid in pericardial sac
3. pulmonary edema
4. congested liver
5. myocardial necrosis
Term
glossypol dx
Definition
1. hx of cotton seed ingestion
2. unthrifty
3. resp distress
4. lesions (heart necrosis)
5. glossypol levels in feed
Term
what are toxic levels of glossypol in feed for swine and calves?
Definition
pigs- >400 ppm
claves- >500 ppm
Term
glossypol Tx
Definition
1. symptomatic
-diuretics
-antibiotics
-electrolytes
2. iron sulfate
Term
sources of fluoride(4)
Definition
1. contaminated forages
2. drinking water wiht high concentration
3. feed suppliments
4. plants in soil with high concentrations
Term
what areas does fluoride toxicity normally effect?
Definition
teeth and bones
Term
in what species is fluoride tox normally seen?
Definition
cattle
Term
what results in denatl lesions?
Definition
ingestion of fluoride during tooth development
Term
signs associated with fluoride tox
Definition
1. mottled enamal, brown teeth, uneven wear
2. difficulty chewing
3. poor growth
4. emaciation
5. enlarged roughened bones (but not on articulate surfaces)
6. lameness
7. poor doers
Term
fluoride dx (5)
Definition
1. exposure hx
2. signs
3. dental and bone lesions
4. urine fluoride toxic levels
5. bone biopsies
Term
at what are normal and toxic levels of fluoride in the urine?
Definition
normal: 2-6 ppm
toxic: 15-20 ppm
Term
what levels of fluoride are considered normal and toxic in bone biopsies?
Definition
normal: 400-1000 ppm
toxic: 3000-5000 ppm
Term
fluoride tx
Definition
non specific
-remove source
-Aluminum sulfate
-aluminum chloride
-calcium carbonate
Term
under what conditions does blue-green algae tocicosis generally occur?
Definition
1. late spring or fall
2. warm sunny weather followed by cool spell
3. ample nutrients
4. gentle constant breeze (concentrate algae at shore)
Term
what are the 3 type of algae associate with toxicity and which is the most common?
Definition
1. microcyctis aeruginosa (mike)*
2. aphanizomenon flos-aquae (fanny)
3. anabaena flos-aquae (annie)
Term
acute sings of blue green algae tox (7)
Definition
1. rapid death
2. muscle tremors
3. ataxia
4. bloody diarrhea
5. downers
6. icterus
7. photosensitization
Term
blue green algae lesions
Definition
acute: nothing/ GI irritation
chronic: GI irritation, liver necrosis leading to photosensitization
Term
blue green algae dx
Definition
1. signs
2. green scum on pond
3. test water
Term
blue green algae tx
Definition
1. supposritve
2. IV fluids
3. activated charcoal
4. antibiotics
Term
blue green algae prevention
Definition
1. fence farm ponds
2. check scum on ponds
3. use herbicides on toxic algae (CuSO4)
Term
what are the 3 different categories that OP have an effect on?
Definition
1. muscarinic
2. nicotinic
3. CNS
Term
clinical signs of OP on muscarinic
Definition
1. salivation
2. colic signs
3. vomiting
4. excessive lacrimation
5. sweating
6. dyspnea
7. miosis
8. urinary incontinence
Term
clinical signs of OP on nicotinic
Definition
1. twitiching
2. genrealized tetnay
3. weakness
4. paralysis
Term
clinical signs of OP on CNS
Definition
cow
1. depression
2. some hyperactivity
3. no convulsions
dogs/cats
1. very excitable convulsions
2. periods of depression and convulsions
Term
why does death occur with OP?
Definition
hypoxia from bronchoconstriction, excessive secretions into bronchial tree, slow heartbeat
Term
thorugh what route does chronic OP poisning occur?
Definition
systemic: absorbed by skin, mucous membranes, GI tract
Term
what must the insecticides contain to be considered an OP?
Definition
phophorous and carbon
Term
delyaed neurotoxicity with OP's
Definition
nerve damage, ataxia, and paralysis 2 weeks after exposure
Term
lesions associated with delayed neuro tox of OP's
Definition
spinal lesions: axonal degeneration and demyelination
Term
General OP lesions
Definition
very few
pulmonary edema
Term
are residues genreally associated with OP's?
Definition
No, not unless theyre chlorinated
Term
differentials associated with OP tox
Definition
1. lead
2. claviceps
3. Rhizoctinia
4. AIP
5. gress tetany
Term
OP dx
Definition
1. Hx
2. signs
3. lesions (pulmonary edema)
4. cholinesterase levels in brain or blood
5. OP in tissue or feed
Term
how do you test for OP tox?
Definition
add acetylcholine to unclotted blood sample or brain record pH and then check again after 1 hour. if pH is the same it means OP tox is present
Term
Tx OP tox
Definition
1. emergency procedures (airway)
2.atropine sulfate (temporary relief)
3. 2-PAM-acetylcholinesterase liberator
4. activated charcoal
5. soap and water if dermal
Term
how to OP's work (simple)
Definition
inhibit cholinesterase
Term
how do carbamates work (simple)
Definition
inhibit cholinesterase
Term
can you reverse carbamates?
Definition
most of them yes, rapidly
Term
signs of carbamate tox
Definition
same as OP but shorter duration
Term
tx for carbamates
Definition
1. emergency procedures
2. activated charcoal
3. washing skin, if dermal
4. atropine sulfate
Term
what is contraindicated as Tx in the case of carbamates?
Definition
2-PAM
Term
what adverse qualities cause us to stop usinf chlorinated hydrocarbons?
Definition
1. persistent in environment
2. accumulate in biological and non bio media
3. undergo biological magnification
4. reproduction in wild birds decreased
Term
clinical signs wiht chlorinated hydrocarbons
Definition
1. hypersensitivity, apprehensive
2. fasiciculations (tiny twitches)
3. muscles tremors
4. seizure and depression cycles
5. ataxic and aimless walking
6. increased salivation
7. comatose
8. death
Term
how long does it take for chlorinated hydrocarbons sings to set in?
Definition
12- 24 hours
Term
chlorinated hydrocarbon dx
Definition
1. hx
2. clinical signs
3. absence of lesions
4. liver and brain residues
Term
differintials for chlorinated hydrocarbons
Definition
1. polioenchalomalacia
2. lead
3. grass tetany
4. rabies
5. coccidiosis
6. ketosis
7. Na ion tox
8. psedorabies
9. strychnine
10. fluoroacetate
11. OP
Term
chlorinated hydrocarbon tx
Definition
treat symptomatically
1. barbiturates and traqulizers for convulsions
2. wash if dermal
3. activated charcoal after gastric lavage
Term
how does phenobarbital help with chlorinated hydrocarbon tox?
Definition
enhances metabolism of organochlorine compunds
Term
what are the three types of botanical insecticides?
Definition
1. nicotine
2. rotenone
3. pyrethrums
Term
signs of nicotine tox
Definition
1. excitment paralysis
2. rapid resp
3. salivation
4. diarrhea
5. emesis
6. muscle weakness
7. muscle twitching
8. coma
9. resp and cardiac arrest
10. death
Term
nicotine tx
Definition
poor prognosis
1. wash if skin exposure
2. emetics
3. activated charcoal
4. atropine
Term
rotenone signs
Definition
1. gastric irritation
2. vomiting
3. neuroroxin
4. incoordination
5. muscle tremors
6. convulsions
7. resp failure
Term
what animals is sensitive to pyrethrums?
Definition
cats
Term
pyrethrum signs
Definition
1. dermatitis
2. asthma like rxn
3. excitment and convulsions
Term
herbicide signs
Definition
1. anorexia
2. depression
3. rumen atony
4. muscle weakness
5. diarrhea
6. general emaciation
Term
signs of herbicides specifically for dogs
Definition
1. ataxia
2. posterior weakness
3. convulsions
4. vomiting
Term
herbicide lesions
Definition
1. GI irritation
2. liver necrosis
3. kidney necrosis
Term
signs associated specifically with amide herbicides
Definition
1. anorexia
2. salivation
3. depression
4. prostration
5. hemorrhage of abomasum and intestine
Term
herbicide Dx
Definition
1. signs
2. exposure
3. tissue/source analysis for herbicides (liver, kidney, stomach contents, water, feed)
Term
herbicide tx
Definition
1. remove from source
2. gastrointestinal protectants
3. activated charcoal
Term
chlorate signs
Definition
1. staggering
2. abdominal pain
3. dyspnea
4. cyanosis
5. death
Term
chlorate dx
Definition
1. hx
2. brown color from methemoglobinemia
3. rule our nitrate via hx and GI problems
Term
arsenical signs
Definition
1. anorexia
2. bloody diarrhea
3. weight loss
4. depression
5. uremia (chronic phase)
Term
arsenical dx
Definition
1. signs
2. history
3. liver and kidney levels of arsenic
4. urine and fecal levels
Term
Diquat and paraquat signs and time frame
Definition
(1-3 days) vomiting and depression
(3-7 days) resp abnormalities
-rapid
-dyspnea
-cyanosis
3. (1 week) death
Term
what animals are affected by diquat and paraquat?
Definition
dog and cattle
Term
diquat and paraquat lesions
Definition
1. dark congested lungs
2. AIP (bullous emphysematous areas
3. fibrosis (8-10 days)
Term
diquat and paraquat dx
Definition
1. Hx
2. signs
3. lesions
4. toxic levels in stomach or lungs
5. urine test for c sodium dithionite
Term
paraquat tx
Definition
1. gastric lavage
2. bentonite or fuller's earth
3. diuresis
4. resp support
Term
Molluscacide signs
Definition
1. incoordination
2. rapid breathing
3. tremors
4. hyperesthesia
5. convulsions
6. nystagmus
Term
Molluscacide lesions
Definition
degeneration of ganglion cells in brain
degeneration of liver
Term
Molluscacide dx
Definition
1. signs
2. hx
3. analysisof stomach contents (acetaldehyde)
Term
Molluscacide tx
Definition
1. sedation (fror tremors/convulsions
2. gastric lavage
3. activated charcoal
4. fluid therapy
5. robaxin
6. diazepam
7. xylazine
8. control acidosis
Term
strychnine signs
Definition
1. apprehension
2. wide, anxious eyes
3. tense
4. walks stiff legged
5. exacerabated by loud noises
6. violent seizures
7. death 1-2 hours (anoxia)
Term
strychnine lesions
Definition
1. rapid rigor mortis
2. gross or microscopic lesions
3. stomach filled wiht red or green material
Term
strychnine dx
Definition
1. clinical signs
2. no lesions
3. rapid rigor mortis
4. stomach contents and liver concentrations
Term
strychnine differentials
Definition
1. hypocalcemia
2. metaldehyde
3. chlorinated hydrocarbon
4. fluoroacetate
5. lead poisoning
6. 2,4-D
Term
strychnine Tx
Definition
1. phenobarbital
2. robaxin
3. diazepam
4. gastric lavage
5. activated charcoal
6. short acting barbiturates
7. intubate and gas anesthesia
Term
Bromethalin signs in rodents
Definition
1. tremors
2. prostration
3. convulsions
4. hypothermia
5. paralysis
6. death
Term
Bromethalin signs in small animals
Definition
1. nystagmus
2. tremors
3. seizures
4. vomiting
Term
Bromethalin lesions
Definition
1. vacuolation and edema of cerebellum
2. swelling of brain and spinal cord
Term
Bromethalin tx
Definition
Initial
1. activated charoal
2. saline cathartic
Therapy
3. corticosteroids
4. osmotic diuretics
Term
warfarin signs
Definition
1. hemorrhage
2. acute death
3. anemic and weak
4. pale mucous membranes
5. dyspnea
6. epistaxis
7. bloody feces
8. hematemesis
9. weak heartbeat
10. hematomas over body
Term
warfarin lesions
Definition
generalized hemorrhage
Term
warfarin dx
Definition
1. hx of exposure
2. clinical signs
3. PT time elevated
4. increased bleeding time
5. increased clotting time
6. platelet count normal
7. fibrinogen normal
8. PCV is low
Term
warfarin tx
Definition
1. correct hypovolemia
2. correct biochemical lesion (replace clotting factors and vit K)
Term
How are Diphacinone and pindone different than warfarin?
Definition
longer half life
warfarin 48 hours
Diphacinone 15-20 days
Term
How much fluoroacetate (1080) does it take to be lethal?
Definition
0.05 mg/kg
Term
1080 signs in dog
Definition
1. frenzied running
2. barking
3. runs up walls
4. very anxious appearance
5. vomiting and defecation
6. seizures and paddling
7. temp 105-108
8. coma
9. death
Term
1080 signs in cow
Definition
1. cardiac arrhythmia
2. ventricular fibrillation
3. staggering
Term
1080 lesions
Definition
1. rapid rigor mortis
2. cyanosis
Term
1080 dx
Definition
1. hx
2. clinicla signs
3. no other convulsants
Term
1080 differentials
Definition
1. strychnine (don't vomit)
2. chlorinated hydrocarbons
3. lead
4. japanese yew, water hemlock
Term
1080 tx
Definition
1. non specific
2. supportive
3. glycerol monoacetate
Term
zinc phosphide signs
Definition
1. lethargic
2. respiratory difficulty
3. vomiting
4. weakness
5. terminal hypoxia
Term
how long does it take to see zinc phosphide signs?
Definition
15 min to 4 hours
Term
zinc phosphide lesions
Definition
lungs- congestion and edema with plural effusions
stomach- acetylene odor
Term
zinc phosphide dx
Definition
1. signs
2. hx of exposure
Term
what animals does norbormide affect?
Definition
rats
Term
what lesion is associated with norbormide tox?
Definition
peripheral vasoconstriction leading to ischemia
Term
phosphorus signs
Definition
1. GI irritation- severe pain and blood
2. apparent recovery
3. icterus and hepatic failure 1 week later
Term
Acute (1-4 days) signs of thallium
Definition
1. gastric distress
2. vomiting
3. hemorrhage diarrhea
4. abdominal pain
Term
subacute (4-7 days) signs of thallium
Definition
1. GI signs
2. reddinging of skin
3. reddening of mm
4. injected conjunctiva
5. distemper like signs
6. hair loss
Term
Chronic (7-10 day) signs of thallium
Definition
1. loss of hair
2. scaling of skin
3. dyspnea
Term
thallium dx
Definition
1. signs
2. thallium in urine
Term
differentials for thallium
Definition
distemper
other heavy metals
Term
thallium tx
Definition
1. evacuate stomach and intestinal tract
2. diphenylthiocarbazone (dithizone)
Term
death occurs how quickly with cholecalciferol tox?
Definition
2-5 days
Term
cholecalciferol signs
Definition
1. anorexia
2. lethargy
3. vomiting
4. diarrhea
5. polyuria
6. sweating
7. polydipsia
8. CNS disturbances
9. Death (calcification of tissues)
Term
cholecalciferol lesions
Definition
1. degeneration of renal tubular epithelium
2. materialization in renal tubules
3. calcification of coranary artery walls, gastric mucosa, intestine and urinary bladder
4. myocardial degerneration, necrosis, and minerialization
Term
cholecalciferol tx
Definition
1. stimulating vomiting
2. activiated charcoal
3. monitor calcium
4. fluid therapy
5. lasix
6. avoid sunlight
7. low Ca diet
8. cortisone
9. calcitonin
10. pamidronate disodium
Term
toxic levels of lead
Definition
acute- 400-600 mg/kg calves
600-800 mg/kg cow
chronic- 7-10 mg/kg for weeks
Term
what species are sensitive to lead poisoning?
Definition
horses
dogs
waterfowl
Term
lead signs
Definition
1. anorexia
2. depression
3. GI signs
4. circle
5. head press
6. ataxia
7. convulsions
8. tremors
9. blindness
Term
lead signs specific to horses
Definition
1. GI involvment (colic, diarrhea)
2. roaring
3. weight loss
Term
lead signs specific to dogs
Definition
1. GI signs
2. convulsions ataxia
3. blindness
4. masseter paralysis
Term
lead lesions
Definition
1. mild gastritis
2. pale muscle (anemia)
3. pale liver with degeneration
4. hyperemia of kidneys
5. edema of brain
Term
lead histo lesions
Definition
1. renal tubular damage
2. gastritis
3. vascular endothelial swelling in the brain
Term
lead dx
Definition
1. hx of exposure
2. clinical signs
3. lesions
4. analyses
5. basophilic sippling of RBC
6. nucleated RBC
7. Low PVC
8. ALA level
9. > 35- 50 ppm in feces
Term
what 3 tissues do we analyze for lead and what are the toxic levels?
Definition
blood > 0.35 ppm
kidney > 10 ppm
lkiver > 10 ppm
Term
lead differentials
Definition
1. rabies
2. distemper
3. hepatitis
4. other heavy metals
5. polio
6. coccidiosis
7. listeria
8. pesticides
9. roaring in horses
Term
lead tx
Definition
1. remove from GI tract (MgSO4, laxative, activated charcoal, mineral oil)
2. remove from body (Ca disodium eythlenediamine tetraacetate, penicillamine)
3. thiamin HCL in cattle
4. fluids
5. barbiturates for seziures
6. mannitol for edema
Term
acute Arsenic signs
Definition
1. Death
2. intense abdominal pain
3. weak
4. staggering
5. trembling
6. diarrhea with blood
7. subnormal temp
8. recumbent
9. schocky
Term
subacute arsenic signs
Definition
1. diarrhea
2. anuria
3. subnormal temp
4. downers
Term
arsenic lesions
Definition
1. very red gastric mucosa or abomasum
2. very fluid appearance of gastric mucosa
3. very inflamed anterior intestinal tract
4. renal tubular degeneration
5. hepatocye necrosis
Term
arsenic dx
Definition
1. signs
2. several animals involved
3. several deaths
4. exposure
5. lesions
6. tissue levels of arsenic
Term
what are the tissue sampled for arsenic tox and the levels?
Definition
kidney > 2-4 ppm
liver > 2-4 ppm
urine > 5 ppm (suspect)
feces > 25 ppm (suspect)
Term
Arsenic differetials
Definition
1. salmonella
2. coccidiosis
3. nitrate
4. cyanide
5. cloistrdial dz
6. urea
7. insecticide poison
8. chromate poisoning
9. thallium
10. lead
11. ethylene glycol, parvo, feline distemper
Term
arsenic tx
Definition
1. supportive (GI protectants, kao-pectat, activated charcoal, mineral oil, saline purgative)
2. sodium thiosulfate
3. BAL or DIMERCAOROL
4. thioctic acid
5. fluid therapy and electrolytes
6. gastric lavage or apomorphine
7. antibiotics
Term
Acute signs of copper tox
Definition
1. greenish diarrhea
2. blood in feces
3. shocky
4. recumbant
5. death
Term
Chronic signs of copper tox
Definition
1. sudden onset of icterus
2. off feed
3. hemoglobinurea
4. weak
5. recumbant
6. tremors
7. death
Term
copper lesions
Definition
1. icterus
2. large blue-black kidneys
3. gun metal colored kidneys
4. blood levels normal (0.75-1.35 ppm)
5. liver (>150 ppm) and kidney (>15 ppm) levels
Term
copper differetials
Definition
1. lepto
2. rape poison
3. onion
4. post parturient hemoglobinurea
5. other metal (arsenic)
Term
copper tx
Definition
1. chelating agents (penicillamin in SA)
2. ammonium molybdate
3. Na thiosulfate with molybdenum
4. remove Cu from stomach
Term
copper prevention
Definition
1. dont fee Cu
2. molybdenumized minerals or blocks
Term
species most sensitive to molybdemum
Definition
cattle- more so than sheep
Term
molybdemum signs
Definition
1. persistent scours "teart)
2. achromotrichia
3. weight loss
4. anemia
5. animals don't shed hair coat
6. unthrifty
7. decreased libido
8. pain in joints
9. fractures
10 enzootic ataxia, anemia, CNS signs
11. sway back
Term
copper Dx
Definition
1. clinical signs
2. Cu:Mo in forages
3. liver Mo (>5) and Cu (<30) levels
4. blood levels (< 0.6ppm Cu), (>0.1 ppm)
Term
molybdemum differentials
Definition
1. nutritional
2. fescue
3. Johne's disease
4. parasites
5. chronic BVD
6. OP poisoning
Term
copper Tx
Definition
1. 5% CuSO4
2. copper glycinate subcutaneously
Term
Mercury signs
Definition
1. Gastroenteritis
2. cough
3. nasal discharge
4. eczema
5. weakness
6. nephritis
7. ataxia
8. hypersenstivity
9. convulsions
10. blind
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