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MIC 541-Exam 5-Parisitology 3
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What is a Cyst and what is it's purpose?
Non-motile form of protozoan
Cyst well = distinct protective membrane
Facilitates host to hot transmission
What is excystation?
Emergence of trophozoite from a cyst
What is the term for the emergence of a trophozoite from a host?
Excystation
What is the cause of amebic dysentary?
Entamoeba histolytica
what does Entamoeba histolytica cause?
Amebic dysentary
What is the worldwide infection rate of Entameoba hitsolytica?
1%
What groups are most likely to be infected with Entamoeba histolytica?
Travelers
immigrants to the U.S.
institutionalized
What percent of people with an infection of Entamoeba histolytica have clinical symptoms?
10-20%
What medical issues increase the symptoms of Entamoeba histolytica?
Malnutrition
Childhood
Steroid therapy
Pregnancy
AIDS
What histological characteristics would you expect for Entamoeba histolytica?
Water expelling vacuoles
Diameter of about 10-20 um
How is Entamoeba histolytica transmitted?
Fecal oral route
What is the treatment for Entamoeba histolytica?
Metronidizole
iodoquinol
Paromycin
What would you treat with metronidazole, paromycin and iodoquinol?
Entamoeba histolytica
What does Entamoeba histolytica look like at the organ level?
Cause liver abscesses
Flask shaped ulcers in the colonic mucosa
What parasite causes flask shaped ulcers in the colonic mucosa and liver abscesses?
Entamoeba histolytica
What type of Parasite is Entamoeba histolytica?
Protozoa - Ameba
What type of parasite is Acanthamoeba Keratitis?
Protozoa-Ameba
What areas of the body does Acanthamoeba Keratitis infect?
Eye
What is a predisposing factor to infection with Acanthamoeba keratitis?
Contact lense wearers 85%
How do you prevent Acanthamoeba keratitis infections?
Don't wear contact lense in the shower or swimming
Don't reuse contact lense solutions
Replace contact lense storage case every 3 months
Author
kyleannkelsey
ID
218322
Card Set
MIC 541-Exam 5-Parisitology 3
Description
MIC 541-Exam 5-Parisitology 3
Updated
5/7/2013, 5:43:24 PM
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