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WorksheetsDealing With Threats Exam 3, Part 8
Total questions: 185
Worksheet time: 2hrs 38mins
In most cases of neurotoxicity, the toxins are so potent that most presentations will be classified as:
Chronic
Subacute
Acute
Subchronic
Which of the following choices does not require metabolic activation to become toxic?
Acetaminophen
Ethylene glycol
Carbmates
Organophosphates
T or F: SLUDDE signs refer to sympathetic overstimulation.
True
False
If Ops and carbamates both lead to inhibition of acetylcholinesterase, which receptors are affected?
Adrenergic
Muscarinic
Nicotinic
With accumulation of acetylcholine at nicotinic receptors, will you see CNS depression or stimulation?
Depression
Stimulation
In order to treat the muscarinic signs of OP/carbamate toxicity, you would administer what drug?
Propranolol
Propofol
Atropine Sulfate
Epinephrine
What is the major mechanism of death in animals poisoned with OPs/carbamates?
Respiratory Failure
Liver Failure
Heart Failure
What is the mechanism of action for the OP/carbamate antidote?
Irreversible binding to mACh receptors
Non-competitive antagonism for mACh receptors
Enhance parasympathetic tone
Decreased sympathetic tone
T or F: Atropine sulfate works on both muscarinic nicotinic ACh receptors.
True
False
What might you treat OP toxicity with, but not carbamate toxicity?
Atropine Sulfate
Propanolol
Dimercaprol
2-PAM
What treatment for OPs alleviates both muscarinic and nicotinic signs?
Atropine Sulfate
2-PAM
Bathing in dawn dish soap
No treatment does this
Which type of Pyrethroids contains the alpha cyano group?
I
II
III
Which type of Pyrethroids contains Permethrin?
I
II
III
T or F: Type II Pyrethroids lead to CNS stimulation.
True
False
Which type of Pyrethroid leads to suppression of action potentials?
I
II
Choreoathetosis syndrome is caused by intoxication with:
Type I Pyrethroids
Permethrin
Type II Pyrethroids
OPs
Choreoathetosis syndrome is caused by intoxication with:
Type I Pyrethroids
Permethrin
Type II Pyrethroids
OPs
If a cat is administered pyrethrin (concentrated) products and develops CNS stimulation. How would you treat?
Functional antagonism (methocarbamol, diazepam)
Chemical antagonism (methacarbmol, diazepam)
Bathe only
Hydration station
Which neurotoxicant blocks the action of glycine? If this neurotransmitter inhibitory or excitatory?
Strychnine; excitatory
Strychnine; inhibitory
OP; inhibitory
Lead; excitatory
T or F: Blocking the action of glycine leads to massive tetanic skeletal muscle contractions.
TRUE
FALSE
What is the mechanism of death associated with Strychnine?
Diaphragmatic tetany
CNS depression
Diaphragmatic hernia
You perform a biochemical panel on a cat and see that it is azotemic. This is an elevation of what?
Blood Urea Nitrogen (BUN)
pH
Creatnine
If an animal is azotemic, your first rule out would be dehydration. What might your second rule out be?
a. Liver damage
b. Kidney damage
c. Respiratory failure
d. Choleliths
Liver damage
Kidney damage
Respiratory failure
Choleliths
What plant causes nephrotoxicity in large animals?
Lilies
Oak
Sequoia
Pine
What plants generally cause GI irritation and kidney damage in cats?
Oak
Pine
Lilies
Daffodils
What is the toxin in oak that causes kidney damage in large animals?
Gallotannins
Amygdalin
Otoxin
Renotannins
Vitamin D3 is found in some rodenticides. What is the other name for this toxin?
Ergocalciferol
Cholecalciferol
Brodifacoum
T or F: Vitamin D3 toxicity can occur from ingestion of commercial dog foods.
True
False
Other than renal tubular necrosis, what also occurs with vitamin D3 toxicity?
Bleeding
Calcification of tissues
Hyperphosphatemia
All the above
What type of urine might you see produced from an animal that ingested too much cholecalciferol?
Hypersthenuria
Hyposthenuria
Isosthenuria
How does cholecalciferol cause mineralization of tissues and bleeding?
Increased calcium and phosphorus in the blood
Increased potassium and phosphorus in the blood
If a dog presented to your clinic several hours after ingesting rodenticide containing cholecalciferol, how might you treat him/her?
V fluids (sodium chloride)
Furosemide/Lasix/Salix
Prednisone
Pamidronate
All the above
Which treatment method for vitamin D3 toxicity is specifically a calcium chelator?
Prednisone
Furosemide
Calcitonin
Pamidronate
Antifreeze and deicing agents contain which nephrotoxic agent?
Vitamin D3
Ethylene Glycol
Strychnine
Cholecalciferol
Which enzyme in the body metabolizes ethylene glycol into its toxic metabolites?
Lactate dehydrogenase
Alcohol dehydrogenase
Phosphatase
Glycolase
Which of the following are not toxic metabolites of ethylene glycol?
Glycolate
Formate
Glyoxylate
Oxalate
Which type of crystalluria will you see with ethylene glycol intoxication?
Calcium oxalate monohydrate
Triple phosphate
Cystine
Tyrosine
Which toxic metabolite of ethylene glycol does not cause metabolic acidosis?
Glycolate
Formate
Glyoxylate
Oxalate
Which stage of ethylene glycol presentation has cardiopulmonary signs?
1
2
3
Which stage of ethylene glycol presentation has gastrointestinal signs?
1
2
3
Which of the following clinical findings is not associated with ethylene glycol intoxication?
Azotemia
Crystalluria
Oliguria
Decreased Anion Gap
What type of urine crystals are these?
Calcium oxalate monohydrate
Cystine
Triple phosphate
Testing for ethylene glycol involved a colorimetric test. This is a:
Quantitative test
Qualitative test
What is the name of the drug that used to be available for EG toxicity?
Famotidine
Omeprazole
Fomepizole
Tapazole
What condition might predispose an animal to NSAID toxicity?
Liver failure
Hypoalbuminemia
Hemorrhage
All the above
Which body system do NSAIDs not cause toxicity in?
Kidneys
Liver
GI
Integument
What do NSAIDs block to reduce prostaglandin synthesis?
COX enzymes
Arachidonic acid
Cholesterol
Inhibition of which cyclooxygenase enzyme leads to nephrotoxicity?
1
2
3
What do NSAIDs do to the kidneys?
Vasodilation
Vasoconstriction
Hyperoxia
Anoxia
Which species of animal is most sensitive to NSAID toxicity?
Dogs
Monkeys
Cats
Guinea pigs
T or F: giving activated charcoal with sorbitol for several doses would be helpful in NSAID toxicities.
True
False
Administering which drug is helpful during NSAID toxicities as it is a synthetic prostaglandin?
Ranitidine
Misoprostol
Sucralfate
Lansoprazole
T or F: Grapes/raisins are toxic to domestic animals such as cats and dogs.
True
False
Which is not a hallmark clinical finding associated with Acetaminophen toxicity in domestic animals?
Methemoglobinemia
Carboxyglobinemia
Hepatotoxicity
Which species’ RBCs are more prone to oxidative injury?
Dogs
Cats
Equine
Cattle
Which symptom occurs in cats, but not other species?
Facial and paw edema
Tachypnea
Depression
V/D
Which of the following is not an effective treatment for acetaminophen toxicity?
Activated charcoal
N-Acteylcysteine
S-Adenosyl Methionine
None of the above
What is the toxin in blue-green algae that causes hepatotoxicity?
Anatoxin-a
Gallotannin
Microcystins
Mycotoxin
How would you treat water that has blue-green algae overgrowth?
SAMe
Silymarin
Copper Sulfate
Atropine Sulfate
Aflatoxicosis is caused by fungi that prefer to grow in _____ weather.
Cool, humid
Cool, dry
Hot, humid
Hot, dry
Which of the following is the metabolite that induced hepatotoxicity in aflatoxicosis?
Aflatoxin B1
Aflatoxin B1 8, 9-Epoxide
Aflatoxin
Aflatoxin B2
Other than hepatotoxicity, what other clinical condition can aflatoxin cause?
Hepatocellular necrosis
Hepatocellular dysplasia
Hepatocellular carcinoma
Prostatic carcinoma
Which species actively convert aflatoxin to its toxic metabolite more than other species?
Chickens
Dogs
Cats
Turkeys
What sugar substitute can induce toxicity in domestic veterinary species?
Aflatoxin
Xylitol
Epoxide
Microcystin
What does xylitol induce in the body?
Massive glucagon release
Massive insulin release
Massive epinephrine release
Insulin suppression
T or F: Insulin cannot bind xylitol.
True
False
Which of the following will not occur in xylitol toxicity?
Hypoglycemia
Thrombocytopenia
Prolonged coagulation
Hyperkalemia
Elevated liver enzymes
T or F: Activated charcoal is effective for xylitol intoxication.
True
False
When should you induce emesis in cases of corrosive agent ingestion?
ASAP
Within 1 hour
Within 30 minutes
NEVER
What type of lesions do corrosive agents produce in the GIT?
Erosions
Ulcers
Which types of batteries are considered emergency situations when ingested?
Lithium button disc batteries
Lead Batteries
How do insoluble oxalate-containing plants cause toxicity and GI irritation?
Triple phosphate crystals
Calcium oxalate crystals
Cystine crystals
Tyrosine crystals
1. What might be released after ingestion of insoluble oxalate-containing plants?
Histamine
Secretin
Motilin
Epinephrine
Mole and gopher rodenticide is made up of gray-purple pellets. What toxin do they contain?
Insoluble oxalate
Brodifacoum
Zinc phosphide
Cholecalciferol
What does aluminum phosphide transform into in the stomach?
Phosphine gas
Oygen Gas
CO2 Gas
What does phosphine gas do in the body?
Blocks anaerobic respiration
Increased glycolysis
Inhibits insulin
Blocks aerobic respiration
If you smell dog breath that smells like rotten fish, what toxin might they have ingested recently?
Zinc phosphide / Aluminum Phosphide
Bromine
Iron
How do you decrease phosphine gas production in the animal?
Administration of SAMe
Administration of Mucomyst
Administration of antacids
Administration of Propanolol
Where might a horse develop colic in response to Phenylbutazone toxicity?
Left dorsal colon
Right dorsal colon
Cecum
Rectum
Which NSAID is most potent ulcerogen in horses?
Ketoprofen
Firocoxib
Banamine
Phenylbutazone
What causes protein-losing enterocolopathy (PLE) in horses with NSAID toxicity?
1. Ulcerative lesions
2. malabsorption
3. Loss of plasma proteins
1. Ulcerative lesions
2. malabsorption
What is the toxin present in Blister Beetles that causes GI toxicity?
Microcystin
Cantharidin
Vesiculant
Aflatoxin B1
How does cantharidin cause blistering and toxicity?
Release of histamine
Release of kinins
Release of serine proteases
Release of phosphatases
What occurs during primary photosensitization?
a.
Increased susceptibility to UV light damage
Increased melanin production
Decreased susceptibility to UV light damage
Decreased melanin production
What alkaloid causes primary photosensitization, and which causes secondary?
Pyrrolizidine; hypericin
Hypericin; Pyrrolizidine
When light reacts with the plant compounds causing photosensitization, what is released?
Free radicals
Radicals
Lumen Buds
What is the toxin present in Yew plants that causes bradycardia, vasodilation and hypotension?
Gallotannins
Taxines
Microcystins
The toxins found in Yew plants are _____ antagonists.
Sodium
Calcium
Potassium
Moldy Sweet Clover is often considered a/an _______.
Yew plant
Taxine
Nitrate
Anticoagulant rodenticide
What is present in anticoagulant rodenticides that exerts its effects on the blood?
Coumarin
Vitamin K
1. What is specifically antagonized in anticoagulant rodenticides?
Vitamin C
Vitamin K-epoxide reductase
Cholecalciferol
Fibrin
Which factor has the shortest half-life?
1
10
7
9
Which coagulation test would you run to check for early vitamin K antagonism?
PT
PTT
ACT
TT
Which coagulation test would you run to determine if your patient’s vitamin K is recovering?
PT
PTT
ACT
TT
What is the major concern in domestic veterinary species with ingestion of second generation anticoagulant rodenticides?
Shorter half-life
Higher LD50
Lower LD50
Less potent
T or F: Warfarin is a first generation anticoagulant?
True
False
How do you treat vitamin K antagonism?
Vitamin K3
Vitamin K1
Plasma transfusion
Cerenia
Which route of administration leads to more rapid absorption of Vitamin K?
PO
SC
IM
T or F: Vitamin K1 can be given IV for more effective absorption.
True
False
What hematological abnormality will you see with cattle exhibiting nitrate toxicity?
Methemoglobinemia
Anoxia
Vasoconstriction
What is nitrate reduced to what in cattle?
(a)
What are two treatments for methemoglobinemia associated with nitrate toxicity?
Methylene Blue
Vitamin C
Which species of snake causes the largest proportion of bites in veterinary species?
Coral snakes
Garden snakes
Pit vipers
Water moccasins
Which type of snake causes the most deaths?
Rattle snakes
Copper heads
Coral
Green-eyed
What type of snake is pictured below?
Rattle snake
Copperhead
Timber rattlesnake
Diamond back
State the four general types of toxins in snake venom.
Coagulants
Hemorrhagins / hemolytics
Myotoxins
Cytotoxins
Which enzymatic protein in snake venom breaks down cell membranes?
Hyaluronidase
Phospholipase A
Thromboxane
Histamine
Which species of snake has the most toxic venom?
Water moccasins
Copperheads
Diamondback
Rattlesnakes
What can you give animals biten by rattle snakes?
(a)
What are some sources for Arsenic?
Water
Soil
Commercial products (treated wood)
Inorganic arsenical pesticides
Which form of arsenic is most associated with toxicity?
Organic
Inorganic
Gas
What does arsenic react with to cause uncoupling of oxidative phosphorylation?
Oxygen
Nitrogen
-SH groups
-OH groups
Which enzyme does arsenic inhibit?
Lactate dehydrogenase
Alcohol dehydrogenase
Pyruvate dehydrogenase
Succinate dehydrogenase
Which of the following is the chelator of choice for arsenic toxicity in large animals?
DMSA
BAL
Dimercaprol
Sodium thiosulfate
Which form of antagonism does chelation therapy use in arsenic toxicity?
Dispositional
Chemical
Functional
Receptor
What are sources of copper?
Feed
Pet food
Which species often gets copper storage disease?
Dogs
Cats
Sheep
Cattle
What occurs in copper storage disease?
Increased intake of copper
Decreased excretion of copper
Which chelator can you use to treat copper toxicity?
Dimercaprol
BAL
D-penicillamine
Zinc
Which body system is least affected by copper toxicity?
Hepatic
Renal
GI
Which of the following is most commonly affected by iron toxicity?
Cats
Adult pigs
Piglets
Sheep
Which organ is least affected by iron toxicity?
Heart
GI
Liver
Kidneys
What is the ideal chelator that specifically binds iron?
Deferoxamine iron chelation
Deferoxamine mesylate
What is a common source of lead?
Paint after 1970
Paint before 1970
Pet food
Bullets
Where are large animal likely to obtain lead toxicosis?
(a)
Where does lead bind?
Liver
Brain
Kidney
Bone
All the above
How does lead cause toxicity?
Interferes with molybdenum
Interferes with calcium
Interferes with zinc
It doesn’t
Why does lead cause CNS signs in neonates more often than adults?
(a)
When submitting samples for lead testing what should you send?
Serum
Plasma
Whole blood
Anticoagulated whole blood
Which chelator for lead toxicity may be nephrotoxic?
DMSA
Dimercaprol
Calcium Disodium EDTA
EDTA
What is a major source of zinc toxicity?
Paint
Pennies
Quarters
Hay
T or F: skeletal abnormalities are most often seen with zinc toxicosis.
True
False
Which organ system is affected with zinc intoxication?
Liver
GI
Kidney
All the above
T or F: Bromethalin gets rapidly absorbed by ther liver and disrupts the NA + K Pump
True
False
Which animal is most suseptible to Bromethalin?
Cats
Dogs
Guinea Pigs
Where do you see Selenium Toxicty most?
Livestock
Dogs
Cats
Selenium Deficiency can be due to?
Mixing Feed Errors
Deficients in soil
Injections
T or F: Selenium toxicity can lead to hair loss and hoof lesions
True
False
Selenium toxicity is due to?
Ingestion of plants
Overdose (injection)
Feed mixing errors
Zinc deficiency are found in what species?
(a)
Zinc deficiency is due to?
Zinc deficits in soil
Genetic predisposiions causing malabsortion of zinc from GI tract
When Zinc is high it can lyse ____?
RBCs
WBCs
We are most concerned with Aflatoxin ____
A1
B1
B2
T or F: Organophosphat/Carbamate Insecticides are considered lipophilic
True
False
Barium sulfate is a ____ salt?
Soluble
Insoluble
Ionized Compounds are more _____soluble and not passively absorbed.
Unionized Compounds are more ______soluble and passively absorb
Lipid; Water
Water;Lipid
The lower the pKa the stronger the?
Base
Taste
Fun
Acid
Why is nitrites bad in cattle?
Nitrite cross into respiratory system
Nitrite cross over into the BBB
Nitrite can cross over into the bloodstream
Which are tends to exclude the hydrophilic poisons/drugs?
Liver
Kidney
BBB
Functionalization Reactions are Phase ____.
Conjugation Reactions are Phase ____.
3, 4
2, 3
2, 1
1, 2
If animals are exposed to acetominophen the liver tries to attach _____ & _____.
Gluconaride and sulfate
Meth
Weed
What are the 3 routes of excretion (Toxicokinetics (ADME))?
Kidneys
Bile
Milk
When cattle ingest Snake Root Poisoning, in the milk, if ingested by humans, what can we get?
Milk Sickness
Milk Poisoning
Milk Turnover
What increases the rate of excretion where you can literally "trap" toxins in their ionized form which makes it more water soluble?
Happy Star
Urine Trapping
Ion Trapping
T or F: In order to ionize you must acidify the urine
True
False
Is Invermectin considered toxic or non-toxic?
Toxic
Non-Toxic
Which is involved in Nephrotoxicity?
Aresnic
Copper
Iron
Lead
Zinc
Which is involved in Hepatotoxicity?
Aresnic
Copper
Iron
Lead
Zinc
Which is involved in Gastrointestinal Toxicity?
Aresnic
Copper
Iron
Lead
Zinc
Which is involved in RBC Hemolysis Toxicity?
Aresnic
Copper
Iron
Lead
Zinc
Which is involved in Metabolic Acidosis?
Aresnic
Copper
Iron
Lead
Zinc
____ are the most affected by Iron Toxicity?
Cows
Horses
Piglets
Adult Pigs
Iron Toxicity chelator is called?
Calcium Disodium EDTA
Deferoxamine Mesylate
D-Penicillamine or Trientine
Sodium Thiosulfate
Copper Toxicity chelator is called?
Calcium Disodium EDTA
Deferoxamine Mesylate
D-Penicillamine or Trientine
Sodium Thiosulfate
Lead Toxicity chelator is called?
Calcium Disodium EDTA
Deferoxamine Mesylate
D-Penicillamine or Trientine
Sodium Thiosulfate
Aresenic Toxicity (in LARGE ANIMALS) chelator is called?
Calcium Disodium EDTA
Deferoxamine Mesylate
D-Penicillamine or Trientine
Sodium Thiosulfate
Why are young animals exposed to lead will primarily exhibit neurological clinical signs?
(a)
What is the distribution of lead in an animal's body after it is absorbed into the blood stream?
Liver
Brain
Kidney
Bone
All of the above
What is the most common source of lead poisoning in large animals (cattle)?
Pennies
Water and Soil
Commerical Products
Inorganic Arsenical Pesticides
Batteries
What is the most common source of zinc poisoning in large animals (cattle)?
Pennies
Water and Soil
Commerical Products
Inorganic Arsenical Pesticides
Batteries
What is the most common source of zinc poisoning in large animals (cattle)?
Pennies
Water and Soil
Commerical Products
Inorganic Arsenical Pesticides
Batteries
What is the clinical presentation of diarrhea associated with some aresenic cases?
Chocolate/Mud
Bloody
Rice Water
Soup
If you have a lead toxicology case, when you collect blood to send off to the lab it should be?
Whole
Half
Third
What is the most common source of copper toxicity?
Silage
Pennies
Plants
Pet Food
T or F: Sheep can excrete copper well
True
False
How does Calcium Disodium EDTA treat Lead Toxicosis?
Absorbs fluid
Pulls heavy metals from the tissues
Pulls mannitol from the bones
What are the 2 forms of Inorganic Arsenic?
As+3
As+5
As+1
Dogs with Copper Storage Disease more susceptible to copper toxicity due to the autosomal recessive train due to lack of a gene (a) coding for a liver portein involved in excretion of copper bile?
Lab Retrievers have 2 autosomal recessive traits due to gener mutation.
ATP7A is in _________ and important for copper mobilization
ATP7B is in _________ and important for excreting excess liver copper in bile
Heart; Lungs
Endothelial Cells; Intestinal Epithelial Cells
Muscosa, Endothelial Cells
Intestinal Epithelial Cells; Hepatocytes
There are 2 phases in Chronic Copper Toxicity, what are they.
Accumulation or Pre-Hemolytic Phase; Hemolytic Phase
Pre Hemolytic Phase; Post Hemolytic Phase
Pre Respiratory Phase; Post Respiratory Phase
What Copper Toxicity Phase is when copper is accumulating in liver overtime?
Phase 1
Phase 2
What Copper Toxicity Phase is when copper gets into the blood because it is released by the liver? Copper Dump
Phase 1
Phase 2
What is the normal concentration of copper to molybdenum in sheep (Ratio)?
(a)
T or F: Molybdenum is a copper angonist?
True
False
Molybdeum is there to manage copper so when molybdenum is not there copper in the animal will be?
Decreased
Increased
