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Amoebas
Parasitology Study Stack
Question | Answer |
---|---|
Name the 5 amoeba genres | Entamoeba histolytica/dispar, Entamoeba hartmanni, Entamoeba coli, Endolimax nana, and Iodamoeba butschlii |
What are the characteristics that differentiate E coli and E histolytica? | Size, RBC ingestion or lack thereof, PC and KC, cytoplasm, nuclear placement, number of nuclei, bacterial ingestion |
Describe the gold standard for diagnosis of Acanthamoeba polyphagia | Non-nutrient agar that is seeded with E. coli bacteria. A. polyphagia digests the bacteria and leaves tracks on the bacterial lawn. |
Cigar-shaped chromatoid bodies appear in which of the amoeba genres? | Entamoeba histolytica and Entamoeba hartmanni |
Why is it important to note the presence of non-pathogenic amoeba? | They may indicate exposure to fecal contamination, as well as indicate an increased chance of having a pathogenic species present |