Term
| Diagnostic stage of intestinal amoebae |
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Definition
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Term
| infective stage of intestinal amoebae |
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Definition
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Term
| method of infection of intestinal amoebae |
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Definition
| food or drink contaminated with feces containing cysts |
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Term
| Why are trophs of intestinal amoeba not infective? |
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Definition
| They are destroyed by gastric secretions. |
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Term
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Definition
| transformation from a cyst to a troph |
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Term
| If intestinal amoebae penetrate large intestine, the trophs are carried through the blood stream where they can...? |
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Definition
| encyst in liver, lung, brain, paricardium, and other tissues |
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Term
| Pathogenic intestinal amoebae |
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Definition
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Term
| Pathogenic, free-living amoebae |
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Definition
Naegleria fowleri,
Acanthamoeba species |
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Term
| Motility of Entamoeba hystolitica |
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Definition
| Movement is progressive and directional. |
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Term
| Ingested red cells are diagnostic of which amoeba? |
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Definition
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Term
| Number of nuclei present in intestinal amoeba trophs? |
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Definition
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Term
| Number of nuclei present in Entamoeba hystolitica cysts? |
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Definition
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Term
| Which cyst has cigar-shaped chromatoidal bars? |
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Definition
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Term
| What amoeba causes flask-shaped ulcers, and how? |
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Definition
| Entamoeba hystolitica causes flask-shaped ulcers by penetrating wall of intestine. |
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Term
| Formerly known as non-pathogenic E. hystolitica |
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Definition
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Term
| Symptoms of Entamoeba hystolitica infection |
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Definition
| diarrhea, dysentery, abdominal pain and cramping, anorexia, weight loss and chronic fatigue |
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Term
| Which is more common, E. hystolitica, or E. dispar? |
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Definition
| E. dispar is up to nine times more common than E. hystolitica |
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Term
| Non-pathogenic intestinal amoebae |
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Definition
| Entamoeba dispar, Entamoeba hartmanni, Entamoeba coli, Endolimax nana, Iodamoeba butschlii |
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Term
| How is a diagnosis of Entamoeba dispar confirmed? |
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Definition
| ELISA to differentiate from E. hystolitica |
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Term
| What characteristic of Entamoeba hartmanni is used to differentiate it from E. hystolitica and E. dispar? |
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Definition
| Size of trophs and cysts. E. hartmanni is smaller than the other two. |
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Term
| Motility of Entamoeba hartmanni troph |
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Definition
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Term
| Entamoeba coli is often found in the same stool specimen with...? |
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Definition
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Term
| Motility of Entamoeba coli troph |
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Definition
| sluggish and non-directional |
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Term
| Which intestinal amoeba troph ingests bacteria? |
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Definition
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Term
| How many nuclei are present in Entamoeba coli cyst? |
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Definition
| Up to 8 nuclei may be present |
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Term
| Which intestinal amoeba cyst has chromatoidal bars with splintered or pointed ends? |
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Definition
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Term
| Which intestinal amoeba has a central karyosome and uniform peripheral granules? |
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Definition
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Term
| Which intestinal amoeba has an eccentric karyosome and irregular peripheral granules? |
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Definition
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Term
| Motility of Endolimax nana |
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Definition
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Term
| How many nuclei are present in Endolimax nana cyst? |
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Definition
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Term
| Motility of Iodamoeba butschlii troph |
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Definition
| progressive in fresh stools |
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Term
| Which intestinal amoeba troph appears to have a halo around the nucleus? |
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Definition
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Term
| Which intestinal amoeba cyst has a large glycogen vacuole that takes up most of the cytoplasm, pushing the nucleus to the side? |
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Definition
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Term
| Which amoeba causes Primary Amebic Meningoencephalitis? |
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Definition
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Term
| Early symptoms of Primary Amebic Meningoencephalitis? |
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Definition
| Upper respiratory distress, headache and lethargy |
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Term
| Which amoeba has motility by explosive formation of blunt pseudopodia? |
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Definition
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Term
| How many nuclei does Naegleria fowleri cyst have? |
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Definition
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Term
| What is the method of infection for Naegleria fowleri? |
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Definition
| Amoebae from water source penetrate nasal mucosa and travel to brain |
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Term
| Acute symptoms of Primary Amebic Meningoencephalitis? |
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Definition
| Severe headache, vomiting, stiff neck, mental confusion, coma, death. |
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Term
| Spinal fluid lab results that would indicate infection with Naegleria fowleri |
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Definition
| cloudy appearance, decreased glucose, increased protein, increased WBC's, absence of bacteria |
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Term
| Which intestinal amoeba troph has a large, conspicuous karyosome that can be centrally or eccentrically located? |
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Definition
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Term
| Motility of Acanthamoeba species troph |
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Definition
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Term
| Which amoeba causes a more chronic form of mengoencephalitis? |
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Definition
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Term
| Predisposing factors to meningoencephalitis caused by Acanthamoeba species |
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Definition
| Hodgkin's disease, diabetes, alcoholism, steroid therapy and immunodeficiency |
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Term
| What is keratitis and what organism is it caused by? |
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Definition
| Eye involvement associated with inadequate disinfection of contact lenses. Caused by Acanthamoeba species. |
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Term
| What specimen is most useful in diagnosing amebic meningoencephalitis? |
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Definition
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