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41 Cards in this Set
- Front
- Back
Entomoeba Histolytica causes these two symptoms
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Dysentery
GI bleeding |
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E. histolytica may mimic _______
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GI Carcinoma
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Entamoeba Histolytica pathology
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1. perforate mucosa
2. Liver Abscesses |
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Transmission of E. histolytica
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fecal-oral trasmission of contaminated food/water -> Cyst ingested -> in ileum differentiates to Troph -> Troph becomes Cyst -> Cyst released in stools
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Colon Ulcer morphology of E. histolytica
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Flask-shaped
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Histology of Entamoeba Histolytica
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Larger than human cells
Redish off-center nucleus RBC's in cytoplasm |
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Treatment for Entamoeba Histolytica
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Metronidazole
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Cryptosporidium is similar in structure and function to ___________
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Toxoplasma
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Cryptosporidium forms environmentally-resistant __________
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Oocysts
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Cryptosporidium primarily infects these people
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Late-stage HIV
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Cryptosporidium is notorious for this outbreak
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Milwaukee which infected ~400,000 people
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Hosts of Cryptosporidium
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Humans
Livestock Dogs |
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Cryptosporidium life cycle
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fecal-oral from animals or humans -> OOCYSTS ingested -> oocysts release sporozoites in SI -> Sporozoites differentiate into Troph and attach to Intestinal Microvilli -> Watery non-bloody diarrhea
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Stain used to diagnose Cryptosporidium
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Acid Fast stain = Kinyoun
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Symptoms of Cryptosporidium
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Watery non-bloody diarrhea usually in HIV patient
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Primary symptoms of Cryptosporidium are due to ________
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malabsorption
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Cryptosporidium may disseminate to these sites
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Gallbladder
Biliary tree Respiratory mucosa |
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Most important aspect of Cryptosporidium treatment
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maintenance of good cellular immunity
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Giardia Lambia is often called _______
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Beaver Fever
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Giardia Lamblia transmittance
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Contaminated water usually in hikers drinking contaminated water from streams
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Symptoms of Giardia Lambia
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Severe, non-bloody diarrhea
Foul-smelling |
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Giardia treatment
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1. Oral re-hydration
2. Metronidazole (Flagyl) |
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Prevention of Giardiasis
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1. Water filters
2. Iodine treatment |
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Most common Protozoan
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Trichomonas Vaginalis
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Trichomonas vaginalis normally causes ....
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sexually trasmitted disease
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Female symptoms of Trichomonas
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1. greenish, watery discharge
2. "fishy" odor |
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Diagnosis of Trichomonas
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"hanging drop" Wet Mount
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How is Trichomonas distinguished from other Flagellate Protozoa?
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lacks a Cyst form
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Commensal protozoan organism
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Endolimax nana
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Entamoeba histolytica
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What Protozoa causes this?
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Entamoeba histolytica
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What protozoa causes this?
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Entamoeba histolytica
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What protozoa is this?
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Entamoeba histolytica = liver abscesses
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What protozoa causes this pathology?
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Entamoeba histolytica
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What protozoa is this?
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Cryptosporidium parvum
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What protozoa is on the surface of GI?
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Crytosporidium Parvum
AFB = Kinyoun stain |
What protozoa and what stain?
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Giardia Lambia
-usually from contaminated water during hiking -"Beaver Fever" -non-bloody, foul smelling diarrhea |
Protozoa in this pic?
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Giardia Lambia
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What protozoa is this?
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Giardia Lambia
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What protozoa?
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Giardia Lambia
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What protozoa
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Trichomonas Vaginalis
-watery, green, fishy-smelling vaginal discharge Hanging drop wet mount |
What protozoa?
What test? |