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VT166 | Hematology > Circulatory Parasites > Flashcards

Circulatory Parasites Flashcards

1
Q

Which parasite is often mistaken for Howell-Jolly Body?

A

Anaplasma Marginale

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2
Q

Is Mycoplasma hemofelis an RBC or WBC parasite?

A

RBC Parasite

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3
Q

Mycoplasma hemofelis is also called?

A

(Hemobartonella felis - rickettsia)

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4
Q

Define: Rickettsia

A

obligate intracellular parasite

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5
Q

What are the 2 Genus of red blood cell parasites?

A
  1. Rickettsia
  2. Mycoplasma
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6
Q

Mycoplasma Hemofelis is what type of parasite?

A

Mycoplasma

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7
Q

Mycoplasma Hemofelis used to be called?

A

Hemobartonella Felis when it used to be classified as a Rickettsia but it is no longer a Rickettsia therefore it has the Mycoplasma name now.

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8
Q

Which species is Mycoplasma Hemofelis relatively common?

A

Felines: As this is an opportunistic parasite therefore cats with FeLV &/or FIV are more susceptible due to their immune comprised state.

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9
Q

What does Mycoplasma Hemofelis cause?

A

Feline Infectious Anemia: FIA

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10
Q

What is the antibiotic of choice for Mycoplasma Hemofelis?

A

Tetracycline

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11
Q

Eperythrozoa spp is classified as?

A

Mycoplasma/Rickettsia

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12
Q

Eperythrozoa spp affects which species?

A

Affects the skin of Cattle and Llamas

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13
Q

Eperythrozoa spp appear on a blood smear as?

A

It Appears as small cocci, rods, or inns on the surface of RBC or free in the plasma

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14
Q

Hemobartonella Canis is classified as?

A

Rickettsia

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15
Q

Is Hemobartonella Canis an RBC or WBC parasite?

A

RBC Parasite

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16
Q

Is Eperythrozoa spp an RBC or WBC parasite?

A

RBC Parasite

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17
Q

Is Hemobartonella canis an RBC or WBC parasite?

A

RBC Parasite

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18
Q

Is Anaplasma marginale an RBC or WBC parasite?

A

RBC Parasite

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19
Q

Is Cytauxzoon Felis an RBC or WBC Parasite

A

RBC Parasite

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20
Q

Is Babesia spp an RBC or WBC Parasite

A

RBC Parasite

21
Q

Babesia bigemina affects which species?

22
Q

Babesia bovis affects which species?

23
Q

Babesia canis affects which species?

24
Q

Babesia gibsoni affects which species?

25
Q

Babesia spp is classified as?

A

A Protozoan

26
Q

What is a Protozoan

A

A Single Celled Parasite

27
Q

Anaplasma marginale is classified as?

A

Rickettsia

28
Q

Anaplasma marginale affects what species?

29
Q
  • Anaplasma means?
A

The word root means “At the margin”

30
Q

Anaplasma marginale is viewable on the blood smear how?

A

It has dark staining cocci at the margin of the RBC. Easily confused with Howell-Holly Body or other irregular stained debris

31
Q

Cytauxzoon Felis is classified as an?

A

A Protozoa

32
Q

True or False: Cytauxzoon Felis is very rare

33
Q

Cytauxzoon Felis Causes?

A

Hemolytic Anemia in Domestic and Wild Cats

34
Q

Cytauxzoon Felis appears as what in a blood smear?

A

Small irregular ring forms within the red blood cells

35
Q

Cytauxzoon Felis can affect what WBC?

A

Lymphocytes and Macrophages

36
Q

Babesia spp is classified as?

A

A Protozoa

37
Q

What is the name of the cattle form of Babesia spp?

A

Babesia bigemina &/or Babesia Bovis

38
Q

What is the canine form of Babesia spp?

A

Babesia canis &/or Babesia gibson i

39
Q

Ehrlichia spp affects RBC or WBC?

A

This a white blood cell Rickettsia/Parasite

40
Q

Ehrlichia spp affects which specific white blood cells?

A

Macrophages: Neutrophils & Monocytes

41
Q

Explain Ehrlichia spp

A

∆ WBC parasite
∆ Classified as a rickettsia
∆ Causes decreased neutrophils and platelets leading to Anemia
∆ Vector is the brown dog tick
∆ Appears as small cluster in the cytoplasm on blood smears

42
Q

Explain: Dirofilaria immitis

A

∆ WBC Parasite - Technically a Nematode
∆ Is the medical name for Heart-Worm
∆ Vector: Mosquito
∆ Microfilaria are found in the circulatory system
∆ Mature Dirofilaria live inside the heart
∆ Commonly confused w/ Acanthocheilonema Reconditum (Used to be called Dipetalonema Reconditum)
∆ Blood Smear: Carried to feather edge. Best to do blood draw around 4:30pm. Avoid 11:00am. Body shape: straight with tapered end
∆ PCV/TP: Buffy coat in the hematocrit tube
∆

43
Q

Explain Acanthocheilonema reconditum

A

∆ WBC Parasite - Technically a Nematode
∆ Adults nematodes live in the SQ tissue & Fats
∆ Larvae are found in circulation leaving the lymph nodes
∆ Vector: Flea, Tick, & Lice
∆ Treatment: Ivermectin
∆ Blood smear: Curved short body in length with blunt curved ends

44
Q

What is the name of the horses form of Babesia spp?

A

Babesia equi &/or Babesia cabali

45
Q

Ehrlichia spp is classified as?

A

Rickettsia

46
Q

Is Acanthocheilonema reconditum a RBC or WBC parasite?

A

WBC Parasite / Technically a Nematode

47
Q

Acanthocheilonema reconditum Vectors are?

A

Flea, Tick, & Lice

48
Q

Acanthocheilonema reconditum recommended treatment is?

A

Ivermectin

49
Q

What is the vector for Ehrlichia spp?

A

The Brown Dog Tick

VT166 | Hematology (13 decks)

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