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Disease Final-

Parasites/Helminth DSA

QuestionAnswer
what determines proportion of system related sympoms? parasitic burden
two examples of obligate intracellular parasites that need ATP from host Chlamydia, Rickettsia
Growth-enhancing media for Campylobacter, E.coli 0157:H7, Salmonella, Shigella, Yersinia enterocolitica O&P testing in Cary Blair medium
Two types of protozoa Trophozoite (motile) and Cyst (infectious)
Entaboeba histolytica, Naegleria fowleri, and Acanthamoeba are ____ Amebas
Giardia lamblia, Trichomonas vaginalis, Trypanosoma are _____ Flagellates
Plasmodium, Cryptosporidium, Toxoplasma are Sporozoans
amoeboid protozoan in intestinal crypts, feeds on intestinal content, host tissue and multiplies by fission, pass in feces, and go through encystment Entamoeba histolytica
can form large abscesses...enter blood stream to liver; tissue destruction, invasion of intestinal tissue = bloody diarrhea called amebic dysentery by what organism? Entamoeba histolytica
typical flask-shaped ulcers of intestine, clinical significance: frequent dysentery with necrotic mucosa and abd pain caused by: entamoeba histolytica
transmission of Entamoeba histolytica fecal-oral
two disorders from Entamoeba histolytica dysentery and liver abscess
Naegleria fowleri and Acanthamoeba cause: Meningoencephalitis
Transmission for Naegleria water
Acanthemoeba Keratitis is a concern for who? people who wear contacts
structure of acanthemoeba double-walled cyst/trophozoites
cause of diarrhea and malabsorption Giardia lamblia
transmission of Giardia direct contact or contaminated foor and water (fecal-oral)
Appearance/morphology of Giardia trophozoites and cyst (4 nuclei)
24 y/o PA student on an elective in Nepal, develops diarrhea, steatorhea, weight loss. Diagnosis? Giardia Lamblia
Trichomoniasis cause by? Trichomonas vaginalis
appearance/morphology of Trichomonas flagellated trophozoite, no cyst
Transmission of Trichomonas sexually, human reservoir, attaches to urogenital mucosa - inflammation
in immunocopromised pt infection results in parasitemia of the brain, liver, lung, other organs and often death from what organism Toxoplasma gondii
tetrad of severe T. gondii infection is retinochoroidits, hydrocephalus, convulsions, intracerebral calcifications
transmission of Toxoplasma gondii OB women, cats
TORCH is what? Toxoplasma Other infections Rubella CMV Herpes Simplex
Plasmodium causes what disease Malaria
Transmission vector of plasmodium female anophele mosquito
4 species of Plasmodium found in humans vivax, malariae, falciparum, ovale
self limiteing or chronic, causes diarrhea via fecal-oral route by untreated water; no invasion, oocytes visible in stool w acid fast stain Cryptosporidium
what type of organism is cryptosporidium? opportunistic
most common helminthis infection in the US Enterobiasis by Enterobius vermicularis
transmission of infection ingestion (man to man/autoinfection), larvae hatch in duodenum, descend to lower ilium, migrating to perianal region
penetrates the skin, causing itching and also can cause symptoms from brochial pneumonia and burdning epigastric pain, diarrhea and constipation may alternate; also anemia, wt loss, bloody dysentery Strongyloides stercoralis
What causes schistosomiasis? Trematode: S. japonicum, mansoni, haematobium
anemia and neuro problems associated with VB12 deficiency from infection due to raw or undercooked fresh water fish Diphyllobothrium latum
humans acquire infection by eating undercooked or raw pork Taenia solium
Taenia solium cause neuro problems of a solitary, encysted scolex called Neurocysticercosis
similar infection as in pork, but contraced through raw or undercooked beef Taenia saginata
Created by: emtdan85
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