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USMLE

New FA Micro 5

QuestionAnswer
yeast that causes diffuse interstitial pneumonia pneumocystis cainii
how do you diagnose PCP? lung biopsy or lavage
methenamine silver stain of lung tissue identifies what? pneumocystis carinii
treatmetn for PCP? TMP-SMX, pentamidine, dapsone
dimorphic fungus that lives on vegetation sporothrix schenckii
cigar-shaped budding yeast visible in pus sporothrix schenckii
treatment for sporothrix schenckii? itraconazole or potassium iodide
bloody diarrhea, liver abscess, RUQ pain? entamoeba histolytica
severe diarrhea in AIDS, mild disease (watery diarrhea) in non-HIV cryptosporidium
brain abscess in HIV, brain defects (ring-enhancing lesions) toxoplasma
foul smelling, greenish discharge; itching and burning trichomonas vaginalis
dilated cardiomyopathy, megacolon, megaesophagus trypanosoma cruzi (Chags' disease)
African sleepign sickness trypanosoma gambinse, rhodesiense
visceral leishmaniasis (kala-azar) leishmania donovani
rapidly fatal menigoencephalitis; swimming in freshwater lakes naegleria
appears as maltese cross on blood smear babesia
trophozoites on wet mount trichomonas vaginalis
cysts on acid-fast stain cryptosporidium
trophozoites or cysts in stool (2) giardia, entamoeba
transmission of entamoeba, giradia, cryptosporidium? cysts in water
transmission of toxoplasma? cysts in meat or cat feces
transmission of babesia? ixodes tick
transmission of leishmania? sandfly
transmission of african sleeping sickness? tsetse fly
undercooked pork tapeworm; larvae cause mass lesions in brain, cysticercosis taenia solium (tapeworm/cestode)
eggs in dog feces when ingested can cause cysts in liver; causes anaphylaxis if antigens are released from cysts echinococcus granulosus (cestode/tapeworm)
snails are host; cercariae penetrate skin of humans; causes granulomas, fibrosis, and inflammation of the spleen and liver schistosoma (trematode/fluke)
undercooked fish; causes inflammation of the biliary tract clonorchis sinensis (trematode/fluke)
undercooked crab meat; causes inflammation and secondary bacterial infection of the lung paragonimus westermani (trematode/fluke)
larvae penetrate skin of feet; intestinal infection can cause anemia ancylostoma duodenale (hookworm)
eggs are visible in feces; intestinal infection asarcis lumbicoides (giant roundworm)
food contaminated with eggs; intestinal infection; causes anal pruritis enterobius vermicularis (pinworm)
larvae in soil penetrate the skin; intestinal infection strongyloides stercoralis
undercooked meat, usually pork; inflammation of muscle, periorbital edema trichinella spiralis
in drinking water; skin inflammation and ulceration dracunculus medinensis
transmitted by deer fly; causes swelling in skin (can see worm crawling in conjuctiva) loa loa
transmitted by female blackflies; causes river blindness onchocera volvulus
food contaminated with eggs; causes granulomas (if in retina leads to blindness) and visceral larva migrans toxocara canis
female mosquito; causes blockage of lymphatic vessels (elephantiasis) wuchereria bancrofti
parasite: brain cysts, seizures taenia solium
parasite: liver cysts echinococcus granulosus
parasite: B12 deficiency diphyllobothrium latum
parasite: biliary tract disease clonorchis sinensis
parasite: hemoptysis paragonimus westermani
parasite: portal hypertension schistosoma mansoni
parasite: hematuria, bladder cancer schistosoma haematobium
parasite: microcytic anemia ancylostoma, necator
parasite: perianal pruritis enterobius
outbreaks after cleaning chicken coops or exploring caves histoplasmosis
what type of fungus is cryptococcus? yeast, not dimorphic
cauliflower skin lesions; broad based budding yeasts blastomyces
how do you diagnose trichinella? muscle biopsy
RMSF-type symptoms plus berry-like clusters (morulae) inside neutrophils? anaplsma phagocytophilium
what causes human granulocytic erlichiosis? anaplasma phagocytophilium
asarcis lumbricoides, clonorchis seinensis, and fascida hepatica can all cause what? bacterial cholangitis
what types of milaria have dormant forms? p. vivax and p. ovale
species of malaria that can cause severe (cerebral) disease? p. falciparum
malaria drug to prevent relapse caused by p. vivax, p. ovale? primaquine
Created by: Asclepius