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Clinical Pathology > Microbiology 4 (parasitology) > Flashcards

Microbiology 4 (parasitology) Flashcards

(58 cards)

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1
Q

modified acid fast positive (3)

A

cryptosporidium
cyclospora
isospora

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2
Q

T. solium proglottid

A

<13 lateral branches

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3
Q

T. saginatum

A

> 13 lateral branches

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4
Q

Entamoeba _____ has ingested RBCs

A

E. histolytica

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5
Q

E. histolytica and E. hartmanii can be distinguished by:

A

E. hartmanii is smaller

E. histolytica ingests RBCs

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6
Q

Entamoeba coli identifying features

A

eccentric karyosome
up to 8 nuclei in cyst
no RBCs inside

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7
Q

Amoeba with iodine-staining vacuole

A

Iodamoeba butschlii

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8
Q

Amoebas with “ball+socket” karyosome

A

Endolimax nana

Iodamoeba butschlii

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9
Q

“napkin ring” lesion mimicking colon CA

A

E. histolytica

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10
Q

how can Naeglaria flowleri be cultured

A

on a lawn of inactivated E. coli

it forms a visible train

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11
Q

non-pathogenic organism that looks like Giardia

A

Chilomastix mesnili

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12
Q

flagellate that causes diarrhea dn is seen as coinfection with Enterobius in children

A

Dientamoeba fragilis

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13
Q

on ddx with leshmania by histology

A

toxoplasma and histoplasma

Leighmania has kinetoplast

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14
Q

culture medium for leishmania

A

Novy-MacNeal-Nicolle

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15
Q

vector for leishmania

A

sandfly

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16
Q

leshmania species that tesnds to disseminate

A

L. donovani

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17
Q

Leishmania species causing mucocutaneous dz

A

L. braziliensis

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18
Q

T.cruzi causes

A

Chagas (heart failure and achalasia)

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19
Q

vector of T.cruzi and inoculation site

A

Reduviid bug

Romana sign on eye

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20
Q

organism with cilia uniformly covering surface

A

Balantidium coli (trophozoite)

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21
Q

location of cryptosporidium parvum

A

adherent to SI enterocyte brush border

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22
Q

location of isopora belli

A

between SI enterocytes

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23
Q

location of microsporidium

A

intracellular in apical portion of enterocyte

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24
Q

clinical of cyclospora

Study These Flashcards
A

fever with watery diarrhea

followed by anorexia/fatigue/weight loss

25
malaria with fever every 48hr
P. ovale, P. vivax, P. falciparum
26
malaria with fever every 72hr
P. malariae
27
Plasmodium assd with nephrotic syndrome
P. malariae
28
Plasmodium assd with CNS dz
P. falciparum
29
Plasmodium with true relapse
P. vivax | P. ovale
30
P. vivax and ovale infect (younger/older) cells
younger (appear enlarged)
31
true malaria relapse due to
harboring latent sporozoites (hypnozoites) in liver
32
HbSA protective against
P. falciparum
33
Duffy negative protective against
P. vivax
34
G6PD def protective against
all plasmodia
35
features of P falciparum
only ring forms and gametocytes (bananas) multiple ring forms applique forms RBCs not enlarged
36
plasmodium with schuffner dots
vivax and ovale
37
babesia vector
Ixodes tick
38
frequent coinfection with babesia
flavivirus | lyme dz
39
infection assd with plasma cell pneumonitis
pneumocystis jirovecii
40
infection assd with rectal prolapse in children
Trichuris trichiura
41
egg of trichuris trichiura looks like
barrel with corks at both ends
42
egg with rough, mamillated surface
Ascaris lumbricoides
43
Loeffler syndrome assd with
Ascaris lumbricoides | Strongyloides
44
2 hookworms
Necatur americanus | Ancylostoma duodenale
45
How to tell N. americanus and A. duodenale from strongyloides
longer buccal cavity | indistinct genital primordium
46
microfilaria found in blood
Wucheria bancrofti Brugia malayi Loa loa
47
differentiation W. bancrofti from B. malayi, and Loa loa
all have sheath W. bancrofti has no tail nuclei B. malayi has 2 tail nuclei Loa loa has continuous row of tail nuclei
48
microfilaria not found in blood
Mansonella perstans | Onchocerca volvulus
49
Onchocerca volvulus causes
dermatitis, keratitis, corneal opacities
50
Bile duct infectiosn
Fasciola hepatica and Fasciolopsis buski (very large eggs) | Clonorchis sinensis
51
Paragonimus wertemanii
shellfish | pulmonitis
52
Katayana fever
febrile illness caused by schistosoma egg laying
53
Assd with SCC of bladder
S. hematobium (distal spine)
54
morphology of egg of Taenia saginata or T. solium
radially striated wall, 3 pairs of hooks
55
proglottid that is wider than long, with almond shaped scolex
Diphyllobothrium latum
56
most common cestode recovered in US
Hymenolepsis nana
57
strongyloides hyperinfection ass with what other infection
Lepromatous leprosy
58
Capable of person to person spread
Enterobius vermicularis | Hymenolepsis nana

Clinical Pathology (59 decks)

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