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Quiz on Household Plant Toxicants, created by gbrowni on 28/04/2014.

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Household Plant Toxicants

Household Plant Toxicants

Question 1 of 18

1

The major active constituent of marijuana THC (Δ-9-tetrahydrocannabinol) is more potent & rapidly crosses the BBB. This is metabolized by the liver to a less potent form (11-hydroxy-Δ-THC ) that does not cross the BBB.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 18

1

Marijuana has a HIGH first past effect in the liver. It is primarily excreted in the bile with small amounts in the urine for 10 days.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 18

1

Clinical signs of marijuana toxicity include all of the following EXCEPT:

Select one of the following:

  • CNS depression & coma

  • mydriasis

  • dribbling urine

  • lethargy & stupor

  • miosis

  • all of the above are clinical signs

Explanation

Question 4 of 18

1

Insoluble Calcium Oxalate Plants:

Select one or more of the following:

  • are all members of the Araceae family

  • include the Dieffenbachia spp

  • can often be fatal

  • have clinical signs that include GI signs, as well as head-shaking, salivation, and voice change

Explanation

Question 5 of 18

1

Citrus Oil Extracts such as D-limonene can cause acute necrotizing dermatitis with septicemia in dogs.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 18

1

What is the initial sign of raisin & grape toxicity associated with acute renal failure?

Select one of the following:

  • Diarrhea

  • PU/PD

  • Vomiting

  • Pooping out edible cheese curds & concurrent coprophagia (because let's be real, who wouldn't eat cheese curds even if they came from your own butt)

  • None of the above

Explanation

Question 7 of 18

1

Hops (Humulus lupulus) toxicity:

Select one or more of the following:

  • Causes a malignant hyperthermia-like syndrome

  • Causes death w/in 6 hours in most dogs

  • Is treated with Dantrolene, a skeletal muscle relaxant

  • Has a guarded to poor prognosis

  • All of the above are true yo.

Explanation

Question 8 of 18

1

Which plants contain colchicine, a human drug for gout, with the highest concentrations in flowers & seeds?

Select one or more of the following:

  • Hyacinths

  • Autumn crocus

  • Glory Lily

  • Spring Daffodils

  • Turkey Chili

Explanation

Question 9 of 18

1

Christmas plants toxicity generally causes mild GI problems (vomiting & diarrhea), and diagnosis is based on history / clinical signs.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 18

1

Check all that are true regarding Sago Palm toxicity:

Select one or more of the following:

  • All parts of the plant are toxic

  • Ingestion of 1-2 leaves can be lethal to a dog

  • The principal toxin is Cycasin

  • The toxin causes hepatic necrosis and can be fatal in 2-4 days

  • I just pooped myself a little and it felt oh so good

Explanation

Question 11 of 18

1

Macademia nuts are only toxic to dogs, causing ocular and renal clinical signs.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 18

1

Cardiotoxic, cardenolide-containing plants can cause death due to asystole.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 18

1

Two important diagnostic tools to diagnose cardenolide-containing plant toxicity include (click all that apply):

Select one or more of the following:

  • ECG Abnormalities

  • Hyponatremia

  • Turkey Pot Pie

  • Abdominal effusion analysis

  • Hyperkalemia

Explanation

Question 14 of 18

1

What mushroom toxins have diagnostic testing available?

Select one or more of the following:

  • Amanitin

  • Ibotenic acid

  • Psilocin

  • Gyromitrin

  • Psilocybin

Explanation

Question 15 of 18

1

Which mechanism of action is incorrectly paired with its toxin type?

Select one or more of the following:

  • Amatoxins - inhibit RNA polymerase II

  • Gyromitrin (hydrazines) - direct irritant to GIT --> decreased GABA & increased glutamate --> increased CNS activity

  • Muscimol (metabolite of ibotenic acid, a isoxazole) - increases membrane permeability for anions --> hyperpolarization & decreased neuronal excitability

  • Muscarine - similar structure to Ach --> competes at parasympathetic, muscarinic receptors in PNS --> SLUDDE

  • All answers are correct.

Explanation

Question 16 of 18

1

Which mushroom is INCORRECTLY paired to the system affected?

Select one or more of the following:

  • Muscarine = GI, respiratory

  • Isoxazoles = CNS, GI

  • Psilocybin = CNS

  • Amatoxins = GI, CNS, renal

  • Hydrazines = GI, CNS, hematopoietic

  • All are correct.

Explanation

Question 17 of 18

1

False parasol (Chlorophyllum molybditties) is a common mushroom that can be found on lawns singly or in fairy rings, commonly causing CNS signs.

Select one of the following:

  • True
  • False

Explanation

Question 18 of 18

1

This mushroom toxicity causes massive hepatic and acute renal necrosis and involves a treatment to help prevent liver uptake of the toxin. It is the most lethal and causes 95% mushroom fatalities in humans.

Select one of the following:

  • False Morel

  • Death Angel

  • Fly Agaric

  • Magic Mushroom

  • Mushroom of Doom

Explanation

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