Flashcards in MIcrobiology: Parasites Deck (69)
Bloating, flatulence, foul-smelling stools:
Pear-shaped organism with tumbling motility:
Treatment for Giardia infection:
Organisms you treat with flagyl (6):
Flagyl = metronidazole
GET GAP for metro
Two nuclei in the trophozoite form, causes diarrhea in hikers:
This protozoal infection causes liver abscesses:
Blood diarrhea with RUQ pain:
Remember that it causes liver abscess
Describe the colonic abscesses associated with Entamoeba infection
Flask-shaped ulcers with a wide base and narrow mouth
Treatment for Entamoeba infection (2 part):
Metronidazole kills amoebae
Iodoquinol kills the cysts
Is chlorine effective in preventing Cryptosporidium infection?
Cysts seen on acid-fast stain:
In AIDS patients:
Cryptococcus: Diarrhea or meningitis?
Cryptosporidium: Diarrhea or meningitis?
Cryptosporidium -> diarrhea
Cryptococcus -> meningitis
Treatment for Cryptosporidium?
Trick question, there isn't one.
Prevention is the name of the game.
How do you diagnose Entamoeba infection (3):
Trophozoites containing RBCs in the blood OR
Multi-nucleated cysts in the stool
Trophozoites containing RBCs:
Brain abscesses in HIV, ring-enhancing lesions:
Classic triad for congenital toxo:
Treatment for Toxoplasmosis (2):
Sulfadiazine + pyrimethamine
This protozoan causes a rapidly fatal meningoencephalitis:
Where do you get it?
How is it diagnosed?
From freshwater lakes, up through cribiform plate
Spinal fluid has amoebae
Organism causing African sleeping sickness:
Trypanosoma brucei, gambiense, or rhodesiense
Treatment for African sleeping sickness:
"SUR is nice to take MELAtonin for sleep"
Suramin (for blood-borne disease)
Melarsoprol for CNS infection
Diagnosis of Toxoplasma (2):
Diagnosis of Trypanosoma infection:
This malaria species has a 48-hr fever cycle.
Malaria species with a 72-hr cycle?
Plasmodium vivax / ovale = 48hr
Plasmodium malariae = 72 hr cycle
This malarial form has no dormant liver form, whereas these two do:
P. falciparum = no dormant form.
P. malariae and vivax/ovale = have a dormant liver form
RBC filled with merozoites:
What is a hypnozoite?
How do you treat it?
Hypnozoite = resting liver form of malaria seen in vivax/ovale and malariae forms.
Tx is with primaquine
The ring form of this parasite can be confused with malaria, why?
How do you tell the two apart?
Babesia's ring form looks like the banana-shaped gametocyte of P. falciparum.
Babesia does not have hemazoin pigment deposits.