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Clin Vet Parasitol > Final Exam Review Questions > Flashcards

Final Exam Review Questions Flashcards

1
Q

(T/F) Eggs will sink in water (wash step) or eggs will float in dense solution

A

True

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2
Q

Centrifugation is proven to increase what?

A

Sensitivity
- Proper speed (400) to sink during wash
- Proper speed to rise during flotation

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3
Q

State the diagnostic techniques available for parasitic infections:

A
  • Fecal flotation (centrifugation)
  • Baermann
  • Fecal smear
  • Quantification (equine/ruminants/production)
  • Soil or pen rope analysis
  • Muscle biopsy or histopathology on tissues or gross ID of worms
  • Sedimentation
  • PCR
  • Special Staining (lectin, IHC)
  • Antibody or antigen testing (Heartworm); ELISA, CF, etc
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4
Q

Term:
is having the full disease condition, often with a variety of symptoms.

A

Clinical disease

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5
Q

Term:
are conditions where the disease is identifiable with laboratory testing or imaging, but have no outward signs or symptoms

A

Subclinical diseases

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6
Q

(T/F) Most parasite ova are heavier (have a greater specific gravity) than distilled water

A

True
- For parasite eggs to float, the specific gravity of the flotation solution must exceed that of the eggs and should be measured with a hydrometer specifically available to measure specific gravity from 1.0 to 1.4

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7
Q

(T/F) With diarrheic feces to recover potential nematode ova, it is advisable to pellet the sample using a centrifuge, draw off the excess liquid and then process the sample using the standard fecal flotation procedure

A

True?

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8
Q

Parasite Stage:
Muellerius (goat lungworm) hatched first-stage larvae (L1’s) recovered in fresh room-temperature feces

Diagnostic Test:

A

Baermann

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9
Q

Parasite Stage:
Liver fluke (Fasciola hepatica) ova recovery in feces

Diagnostic Test:

A

Centrifugation fecal flotation

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10
Q

Parasite Stage:
Toxocara eggs from a puppy’s feces

Diagnostic Test:

A

Centrifugation fecal flotation

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11
Q

Parasite Stage:
Microfilaria from nematode recovered in blood

Diagnostic Test:

A

Modified Knott’s

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12
Q

Term:
The time after the host is infected but before the parasite’s reproductive diagnostic stage can be found

A

Prepatent Period

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13
Q

What diagnostic test is best for detecting a patent roundworm infection in a 3-month-old puppy?

A

Fecal centrifugation flotation

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14
Q
  • A wider margin of safety as compared to albendazole
  • Useful Giardia Treatment
  • effective against many common nematodes
A

Fenbendazole

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15
Q

What is a fatal flaw (error) that someone can make in performing a centrifugation flotation fecal examination for recovering common nematode ova from a dog fecal and cause the result to be “no ova detected”?

A

Failing to use sufficient material

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16
Q

(T/F) Refrigeration of a fecal sample for parasitology evaluation will negatively impact a Baerman test for recovery of viable motile larvae

A

True

17
Q

List where parasite ova can be found in biological samples:

A
  • Feces
  • Urine
  • Nasal discharge
18
Q

What is a fecal smear technique used for?

A

Motile Protozoa

19
Q

(T/F) Ground and soil pickup when collecting a fecal sample deposited on wet loose soil presents a problem for parasite detection

A

True

20
Q
  • Will kill both endoparasites and ectoparasites
  • Is a macrocyclic lactone
  • Ivermectin
A

Endectocide

21
Q

(T/F) To treat a goat with Giardia, you may use metronidazole

A

False, it is banned by FDA in FA.

22
Q

(T/F) When a dewormer is tested part of the approval process includes the dewormer being tested against at least two separate isolates or strains of the target parasite

A

True

23
Q

What medication is the best treatment for a Trichuris infection in an adult dog?

A

Fenbendazole

24
Q

Term:
The population of parasites/stages escape exposure to drug treatment and remain susceptible to anthelmintics

A

Refugia
- As the size of the refugia increases the rate of resistance decreases

Clin Vet Parasitol (6 decks)

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