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Microbiology Comprehensive Exam > Part 1.3 > Flashcards

Part 1.3 Flashcards

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1
Q

The Epstein-Barr virus is associated with which of the following?

A. Chickenpox
B. Hodgkin’s lymphoma
C. Burkitt’s lymphoma
D. Smallpox

A

C. Burkitt’s lymphoma

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2
Q

Charcot-Leyden crystals in stool may be associated with an immune response and are thought to be the breakdown products of:

A. Neutrophils
B. Eosinophils
C. Monocytes
D. Lymphocytes

A

B. Eosinophils

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3
Q

The infective stage is the sheathed filariform larva:

A. Ancylostoma duodenal
B. Strongyloides stercolaris
C. Both
D. Neither

A

A. Ancylostoma duodenal

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4
Q

Habitat of the adult Trichinella spiralis:

A. Small intestines
B. Skeletal muscles
C. Blood
D. CSF

A

A. Small intestines

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5
Q

Eosinophilic meningoencephalitis, a mild and self-limited infection is caused by:

A. Necator americanus
B. Angiostrongylus cantonensis
C. Ancylostoma braziliense
D. Strongyloides stercoralis

A

B. Angiostrongylus cantonensis

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6
Q

Visceral larva migrans is associated with this organism:

A. Anycylostoma duodenal
B. Toxocara canis
C. Dracunculus medinensis
D. Onchocerca volvulus

A

B. Toxocara canis

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7
Q

Nematode parasite thought to have been the “fiery serpent” of the ancient Israelites. This parasite, which has various species of Cyclops as its intermediate host, is:

A. Dicrocoelium dendrticum
B. Dipetalonema perstans
C. Diphyllobothrium latum
D. Dracunculus medinensis

A

D. Dracunculus medinensis

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8
Q

A dog parasite that almost never develops to an adult in humans has been found in some persons as a cause of a subcutaneous nodule or a solitary peripheral nodule in the lung. This nematode is:

A. Ancylostoma braziliense
B. Dirofilaria immitis
C. Dipylidium caninum
D. Echinococcus granulosus

A

B. Dirofilaria immitis

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9
Q

Microcytic anemia is associated with this parasite:

A. Trichinella spiralis
B. Diphyllobothrium latum
C. Ancylostoma duodenale
D. Heterophyes heterophyes

A

C. Ancylostoma duodenale

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10
Q

Which of the following microfilariae is unsheathed?

A. Wuchereria bancrofti
B. Onchocerca volvulus
C. Loa loa
D. Brugia malayi

A

B. Onchocerca volvulus

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11
Q

Rhabditiform larva with purposeless motion and short buccal cavity:

A. Hookworm
B. Strongyloides
C. Both of these
D. None of these

A

B. Strongyloides

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12
Q

Operculated ovum containing a miracidium and can appear in sputum, often accompanied by blood and Charcot-Leyden crystals:

A. Fasciola hepatic
B. Paragonimus westermani
C. Schistosoma mansoni
D. Dipylidium caninum

A

B. Paragonimus westermani

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13
Q

Infective stage of the Schistosomes to their final host:

A. Miracidium
B. Sporocyst
C. Cercaria
D. Metacercaria

A

C. Cercaria

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14
Q

Eggs of this fluke are small and shaped like an old-fashioned electric light bulb:

A. Clonorchis sinensis
B. Fasciola lanceolata
C. Fasciolopsis buski D. Echinostoma ilocanum

A

A. Clonorchis sinensis

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15
Q

What trophozoite is distinguished by the possession of achromatic granules surrounding its karyosomal chromatin?

A. Endolimax nana
B. Entamoeba coli
C. Entamoeba histolytica
D. Iodamoeba butschlii

A

D. Iodamoeba butschlii

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16
Q

A soil and water amoeba isolated from cases of meningoencephalitis:

A. Naegleria
B. Dientamoeba fragilis
C. Isospora belli
D. AOTA

A

A. Naegleria

17
Q

Specimen shows active amoeba with cytoplasm containing ingested erythrocytes, nucleus with central karyosome. Identity is:

A. Entamoeba gingivalis
B. Entamoeba coli
C. Entamoeba histolytica
D. Iodamoeba butschlii

A

C. Entamoeba histolytica

18
Q

A lemon-shaped cyst with a nipple at one end belongs to:

A. Giardia lamblia
B. Chilomastix mesnili
C. Trichomonas vaginalis
D. Dientamoeba fragilis

A

B. Chilomastix mesnili

19
Q

A pear-shaped flagellate with jerky motility, found in urine specimen, is identified as:

A. Trichomonas hominis
B. Trichomonas vaginalis
C. Giardia lamblia
D. Schistosoma haematobium

A

B. Trichomonas vaginalis

20
Q

A pear-shaped flagellate with a visible parabasal body and “falling leaf” motility in adirect saline mount of a diarrheal stool specimen is most probably:

A. Trichomonas hominis
B. Trichomonas vaginalis
C. Giardia lamblia
D. Schistosoma haematobium

A

C. Giardia lamblia

21
Q

This is diagnostic of Entamoeba histolytica if present in the amoebic trophozoite:

A. Pus cells
B. Nuclei
C. Red cells
D. Macrophage

A

C. Red cells

22
Q

The string test (Entero-Test) for obtaining a small specimen of duodenal contents for parasitic infection would be most appropriate for:

A. Giardia lamblia
B. Chilomastix mesnili
C. Endolimax nana
D. Entamoeba histolytica

A

A. Giardia lamblia

23
Q

Cysticercosis is caused by the disseminated larva of:

A. Hymenolepis nana
B. Necator americanus
C. Echinococcus granulosus
D. Taenia solium

A

D. Taenia solium

24
Q

Xenodiagnosis is usually performed for the diagnosis of:

A. Trypanosoma cruzi
B. Schistosoma japonicum
C. Leishmania donovani
D. Leishmania gambiense

A

A. Trypanosoma cruzi

25
Q

Asexual development and multiplication of malarial parasites:

A. Sporogony
B. Schizogony
C. Both
D. Neither

A

B. Schizogony

26
Q

Which stage of the malaria parasite is injected by mosquitoes?

A. Oocyst
B. Merozoite
C. Sporozoite
D. Gametocyte

A

C. Sporozoite

27
Q

Asexual life cycle of malaria parasite occur in:

A. Man
B. Anopheles mosquito
C. Flies
D. Ticks

A

A. Man

28
Q

Stage predominantly seen in the smear is the band form of the developing trophozoite:

A. Plasmodium falciparum
B. Plasmodium ovale
C. Plasmodium malaria
D. Plasmodium vivax

A

C. Plasmodium malaria

29
Q

Causes blackwater fever:

A. P. vivax
B. P. malariae
C. P. ovale
D. P. falciparum

A

D. P. falciparum

30
Q

Plasmodium sp which has an affinity for mature or older red blood cells:

A. P. vivax
B. P. malariae
C. P. ovale
D. P. falciparum

A

B. P. malariae

Microbiology Comprehensive Exam (3 decks)

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