Part 1.3 Flashcards
(30 cards)
The Epstein-Barr virus is associated with which of the following?
A. Chickenpox
B. Hodgkin’s lymphoma
C. Burkitt’s lymphoma
D. Smallpox
C. Burkitt’s lymphoma
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
B. Eosinophils
The infective stage is the sheathed filariform larva:
A. Ancylostoma duodenal
B. Strongyloides stercolaris
C. Both
D. Neither
A. Ancylostoma duodenal
Habitat of the adult Trichinella spiralis:
A. Small intestines
B. Skeletal muscles
C. Blood
D. CSF
A. Small intestines
Eosinophilic meningoencephalitis, a mild and self-limited infection is caused by:
A. Necator americanus
B. Angiostrongylus cantonensis
C. Ancylostoma braziliense
D. Strongyloides stercoralis
B. Angiostrongylus cantonensis
Visceral larva migrans is associated with this organism:
A. Anycylostoma duodenal
B. Toxocara canis
C. Dracunculus medinensis
D. Onchocerca volvulus
B. Toxocara canis
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
D. Dracunculus medinensis
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
B. Dirofilaria immitis
Microcytic anemia is associated with this parasite:
A. Trichinella spiralis
B. Diphyllobothrium latum
C. Ancylostoma duodenale
D. Heterophyes heterophyes
C. Ancylostoma duodenale
Which of the following microfilariae is unsheathed?
A. Wuchereria bancrofti
B. Onchocerca volvulus
C. Loa loa
D. Brugia malayi
B. Onchocerca volvulus
Rhabditiform larva with purposeless motion and short buccal cavity:
A. Hookworm
B. Strongyloides
C. Both of these
D. None of these
B. Strongyloides
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
B. Paragonimus westermani
Infective stage of the Schistosomes to their final host:
A. Miracidium
B. Sporocyst
C. Cercaria
D. Metacercaria
C. Cercaria
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. Clonorchis sinensis
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
D. Iodamoeba butschlii
A soil and water amoeba isolated from cases of meningoencephalitis:
A. Naegleria
B. Dientamoeba fragilis
C. Isospora belli
D. AOTA
A. Naegleria
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
C. Entamoeba histolytica
A lemon-shaped cyst with a nipple at one end belongs to:
A. Giardia lamblia
B. Chilomastix mesnili
C. Trichomonas vaginalis
D. Dientamoeba fragilis
B. Chilomastix mesnili
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
B. Trichomonas vaginalis
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
C. Giardia lamblia
This is diagnostic of Entamoeba histolytica if present in the amoebic trophozoite:
A. Pus cells
B. Nuclei
C. Red cells
D. Macrophage
C. Red cells
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. Giardia lamblia
Cysticercosis is caused by the disseminated larva of:
A. Hymenolepis nana
B. Necator americanus
C. Echinococcus granulosus
D. Taenia solium
D. Taenia solium
Xenodiagnosis is usually performed for the diagnosis of:
A. Trypanosoma cruzi
B. Schistosoma japonicum
C. Leishmania donovani
D. Leishmania gambiense
A. Trypanosoma cruzi
