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THE AMEBAS - LEC2

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Question
Answer
commensals   show
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show Entamoeba polecki  
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is a probable cause of diarrhea.   show
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show Entamoeba histolytica  
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show E. moshkovskii  
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show E. histolytica, E. dispar, and E. moshkovskii  
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show Entamoeba hartmanni  
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is a pseudopod forming non-flagellated protozoan parasite   show
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show Entamoeba histolytica , E. dispar, E. moshkovskii, E. hartmanni, E. polecki, E. coli, and E. gingivalis)  
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show - infective cyst - invasive trophozoite form.  
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No host other than humans is implicated in the life cycle, although natural infection of primates has been reported.   show
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show binary fission  
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show E. histolytica  
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show E. histolytica  
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show In vitro  
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show Amebic liver abscess (ALA)  
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The cardinal manifestations of ALA are fever and right upper quadrant (RUQ) pain.   show
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Activated ? kill E. histolytica   show
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May be epidemic   show
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Acute onset   show
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show Bacillary Dysentery  
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show Bacillary Dysentery  
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Patient prostrate   show
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show Bacillary Dysentery  
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Odorless stool   show
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Stool microscopy: numerous bacilli, pus cells,   show
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show Bacillary Dysentery  
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Abdominal cramps common and severe   show
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Tenesmus common   show
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Natural history: spontaneous recovery in a few days, weeks or more; no relapse   show
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Seldom epidemic   show
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Gradual onset   show
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show Amebic Dysentery  
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show Amebic Dysentery  
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Patient usually ambulant   show
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show Amebic Dysentery  
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show Amebic Dysentery  
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Stool microscopy: few bacilli, red cells, trophozoites with ingested red blood cells, Charcot-Leyden crystals   show
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show Amebic Dysentery  
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Tenesmus uncommon   show
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Natural history: lasts for weeks; dysentery returns after remission; infection persists for years   show
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FECT   show
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MIFC   show
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ELISA   show
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are the major reservoirs of infection with E. histolytica.   show
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The genus ? has a spherical nucleus with a distinct nuclear membrane lined with chromatin granules and a small karyosomefound near the center of the nucleus. Trophozoites usually have only one nucleus.   show
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show Endolimax  
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The genus ? is characterized by a large, chromatin-rich karyosome surrounded by a layer of achromatic globules and anchored to the nuclear membrane by achromatic fibrils.   show
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show Entamoeba gingivalis  
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show Entamoeba dispar  
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show Entamoeba moshkovskii  
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show Entamoeba coli  
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show Entamoeba polecki  
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which is found in apes and monkeys, is morphologically identical to E. polecki.   show
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can be found in the mouth.   show
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show Entamoeba gingivalis  
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occurs with the same frequency as Entamoeba coli.   show
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No treatment is necessary because these amebae do not cause disease.   show
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is a ubiquitous, free-living ameba that is the etiologic agent of Acanthamoeba keratitis (AK) and granulomatous amebic encephalitis (GAE)   show
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show Acanthamoeba  
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Acanthamoeba has only two stages, ??, in its life cycle.   show
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(AK)   show
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show granulomatous amebic encephalitis  
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show acquired immune deficiency syndrome  
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is diagnosed by epithelial biopsy or corneal scrapings for recoverable ameba with characteristic staining patterns on histologic analysis.   show
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show A. castellani, A. culbertsoni, A. hutchetti, A. polyphaga, and A. rhysoides.  
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are free-living protozoans with two vegetative forms: an ameba (trophozoite form), and a flagellate (swimming form).   show
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(trophozoite form)   show
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(swimming form).   show
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There are two forms of trophozoites of Naegleria fowleri: ??   show
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show true  
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show cerebrospinal fluid  
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show N. fowleri  
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