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MTAP 1 > Parasitology > Flashcards

Parasitology Flashcards

1
Q

Vegetative, motile, active reproduction, feeding, less resistant
Non-infective when ingested since it will die due to stomach acid

A

Trophozoite

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2
Q

Non-motile, resistant due to hyaline wall
-Resistant to acid

A

Cyst

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3
Q

All amoeba are intestinal except

A

E. gingivalis

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4
Q

Charcot Leyden crystals are associated with what parasite?

A

e. histolytica

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5
Q

true or false
Both cyst and trophozoite are used for diagnostic stage in E. histolytica

A

True

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6
Q

The only pathogenic parasite among amoeba

A

E. histolytica

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7
Q

Karyosome appearance of Entamoeba coli cyst

A

eccentric chromosome

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8
Q

Nuclear membrane appearance of Entamoeba coli cyst
thin or thick

A

thick

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9
Q

Chromatoidal body appearance of Entamoeba coli cyst

A

whisk broom, splintered glass

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10
Q

number of nuclei for Entamoeba coli cyst

A

Nuclei = 1-8

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11
Q

Pseudopod appearance of Entamoeba coli cyst

A

round, blunted

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12
Q

also known as crossed eyed cyst

A

Endolimax nana

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13
Q

Karyosome appearance of Endolimax nana

A

Blot-like karyosome

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14
Q

Smallest protozoan

A

Endolimax nana

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15
Q

amoeba that causes Pyorrhea alveolaris

A

Entamoeba gingivalis

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16
Q

amoeba that Resembles bull’s eye

A

Iodamoeba butchlii cyst

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17
Q

Trophozoite has spiny hyaline extensions

A

Acanthamobea spp

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18
Q

Acanthamobea spp Infective stage is?

A

trophozoite

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19
Q

? stools are best for detecting amoeba and flagellate trophozoites

A

Liquid

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20
Q

What are the ameobas without cyst? = NoTED

A

Trichomonas
E. gingivalis
D. fragilis

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21
Q

Sexually transmitted amoebas
2TEG or GETT

A

® T. vaginalis
® T. cruzi
® E. histolytica
® G. lamblia (male to male)

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22
Q

What is the appearance of amebic liver abscess due to E. histolytica

A

Anchovy sauce

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23
Q

What are the entry points of Acanthamoeba
- BEN

A

Broken skin/ulcerated skin
Eyes
Nasal

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24
Q

has the Motility : falling leaf

A

Gardia lamblia

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25
Q

trophozoite appearance Old man with eyeglasses, pear shaped, teardrop
(anterior: Rounded ; posterior: Pointed)

A

Gardia lamblia

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26
Q

number or nuclei and flagella of Gardia lamblia

A

Nuclei: 2
Flagella : 8

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27
Q

causes (traveller’s diarrhea)

A

Gardia lamblia

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28
Q

Dx stage of Gardia lamblia

A

Trophozoite and cyst

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29
Q

specimen of choice for Gardia lamblia

A

Duodenal fluid aspirate

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30
Q

cyst appearance is pear or lemon shaped
* conical anterior with knob- like protuberance - nipple
shape

A

Chilomastrix meslini

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31
Q

parasite associated with Pingpong Disease

A

Trichomonas vaginalis

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32
Q

Trichomonas vaginalis motility

A

rapid jerky motility

33
Q

Brain-eating amoeba

A

Naegleria fowleri

34
Q

Infective and Diagnostic stage of Naegleria fowleri

A

Trophozoite

35
Q

The ONLY ciliated medically significant protozoan.

A

Balantidium coli

36
Q

THROWN BALL or BORING motilit

A

Balantidium coli

37
Q

Which parasite causes strawberry cervic

A

Trichomonas vaginalis

38
Q

Which sample is preferred for T. tenax

A

Mouth scrapings

39
Q

Which sample is preferred for T. tenax

40
Q

What is the characteristics of vaginal discharge if a person is infected
with T. vaginalis?

A

Yellow-green frothy discharge with foul odor

41
Q

Which parasite is pear-shaped with twisted posterior end

A

Chilomastrix meslini

42
Q

What is the characteristic shape of C. meslini?

A

Shepherd’s crook

43
Q

Which amoeba has a large glycogen vacuole

A

Iodameoba butchlii

44
Q

Morphological Stages of Flagellates

Ovoid (with nucleus and kinetoblast)
* NO flagella (non-motile)
* NO undulating membrane

A

AMASTIGOTE

45
Q

Morphological Stages of Flagellates
* Elongated
* Spindle
* WITH flagella
* NO undulating membrane
* Kinetoplast anterior to nucleus

A

PROMASTIGOTE

46
Q

Flagella
* Almost posterior
* WITH undulating membrane
* Kinetoplast anterior to nucleus

A

EPIMASTIGOTE

47
Q
  • Kinetoplast POSTERIOR to nucleus
  • 12 to 35 um long
  • 2 to 4 um wide
  • Often assume the shape of letters C, S, or U
    in stained blood films
  • FULL BODY LENGTH undulating membrane
A

TRYPOMASTIGOTE

48
Q

American trypanosomiasis or Chagas’ disease

A

Trypanosoma cruzi

49
Q

Treatment For T. cruzi

A

Nifurtimox (Lampit)

50
Q

the most common initial symptom for T. cruzi

51
Q

Winterbottom sign is seen on

A

T. brucei rhodesiense

52
Q

True or false
Presence of IgG in the CSF is diagnostic for T. b.
rhodesiense

A

False, should be IgM

53
Q

Tsetse fly

A

T. gambiense and T. b. rhodesiense

54
Q

Enlargement of visceral organs

55
Q

What appearance is created by Babesia inside the RBC in which there
are 4 trophozoites that are connected by their chromatin?

A

Maltese cross appearance

56
Q

Mature oocyst with sausage shaped
sporozoites

A

Isospora belli

57
Q

it is identified using Gomori Methenamine Silver stain

A

Pneumocystis jirovecii

58
Q

Toxoplasma gondii Infective Stage from man to man

A

tachyzoites and bradyzoites

59
Q

Ixodes dammini

A

Babesia microti

60
Q

Ixodes ricinus

A

B. divergens

61
Q

Babesia Infective stage:

A

Sporozoites

62
Q

Babesia Diagnostic Stage:

A

Trophozoite

63
Q

Prodrome-like symptoms is seen in

64
Q
  • Young RBCs
  • Enlarged, distorted with ragged cell walls
  • Infection for 1 yr
65
Q

True or false
P. falciparum and P. malariae have the ability to hide behind the
endothelial cells, thus not recognized by WBCs

66
Q

Both young and old RBCs infected

A

P. falciparum

67
Q

– Maurer’s dot

A

P. falciparum

68
Q

Ziemann’s dot

A

P. malariae

69
Q

active chromatin replication is seen

A

Immature schizonts

70
Q

taken by the
mosquito/infects the mosquito

A

Gametocyte

71
Q

infects man

A

Sporozoite

72
Q

Black water

A

Plasmodium falciparu

73
Q

Also known as Dum Dum fever or Kala-azar with
hepatosplenomegal

A

Leishmania donovani comple

74
Q

Sandfly carries Promastigote
True or False

75
Q

Promastigotes are phagocytized by monocytes, at kayang mabuhay sa loob
ng phagocytes MEANS they are extracellular
True or False

A

False, should be intracellular

76
Q

EAST African Sleeping sickness, Rhodesian trypanosomiasis

A

Trypanosoma brucei rhodesiense

77
Q

Romana sign

78
Q

parasite associated with the ff.
Kerandel’s sign
Winterbottom’s sign
somnolence

A

T. brucei gambiense

79
Q

Trypanosoma cruzi MOT

A

Reduviid bug
Blood transfusion
SexTransplacenta

MTAP 1 (15 decks)

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