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31 Cards in this Set
- Front
- Back
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Strongyloides stercoralis mode of infection
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filariform larca in contaminated soil that directly penetrates skin, in warm climates
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walking barefoot in Georgian grass
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Strongyloides stercoralis
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diagnosis of Strongyloides stercoralis
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detection of rhabditiform larvae in stool (non infectious form)
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Disease caused by Strongyloides stercoralis
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Skin problems get into lung, coughing up causes host to swallow and infect GI to cause GI ulcers
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an Immunocompromised host infected by Strongyloides stercoralis can get what?
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autoinfection; larvae worms can penetrate wall to re-enter bloodstream and continue life cycle
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Two forms of hookworms and mode of infection?
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Necator americanus
Ancylostoma duodenale - direct skin infection like Strongyloides |
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walking barefoot in grass down south
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strongyloides AND hookworms
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Diagnosis of hookworms
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thin-walled oval eggs in stool
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disease caused by hookworms?
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itchyness at site of penetration, pneumonitis, iron deficiency anemia due to blood loss
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How do hookworms cause anemia?
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They suck your blood; head attaches to intestinal wall and tail is freeeee
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fish tapeworm causes ___ anemia?
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pernicious anemia (B12 loss)
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causes cutaneous larval migrans?
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Dog hookworms
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Enterobius vermicularis infection method?
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ingestion of egg (aka pinworm)
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Infective form of enterobius vermicularis?
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flat-sided embryonated eggs; infectious 4 hrs after deposit
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Diagnosis of pinworm?
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scotch tape test - detection of egg in perianal region
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Two forms of hookworms and mode of infection?
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Necator americanus
Ancylostoma duodenale - direct skin infection like Strongyloides |
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walking barefoot in grass down south
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strongyloides AND hookworms
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Diagnosis of hookworms
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thin-walled oval eggs in stool
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disease caused by hookworms?
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itchyness at site of penetration, pneumonitis, iron deficiency anemia due to blood loss
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How do hookworms cause anemia?
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They suck your blood; head attaches to intestinal wall and tail is freeeee
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fish tapeworm causes ___ anemia?
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pernicious anemia (B12 loss)
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causes cutaneous larval migrans?
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Dog hookworms
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Enterobius vermicularis infection method?
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ingestion of egg (aka pinworm)
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Infective form of enterobius vermicularis?
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flat-sided embryonated eggs; infectious 4 hrs after deposit
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Diagnosis of pinworm?
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scotch tape test - detection of egg in perianal region
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Disease caused by pinworm?
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Perianal itching and irritability in children
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disease caused by ascaris lumbricoides?
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they get so large most disease caused by obstruction like in GI lumen, bile duct, pneumonitis, inflammation
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Causes bowl obstruction and has lips?
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Ascaris lumbricoides; they form worm balls
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Diagnosis of Ascaris?
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eggs or adults in stool (pooed out worms)
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Toxocara cati?
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dog/cat ascarids causing eye/brain lesions
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elephantitis caused by filariasis?
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Wucheria bancrofi
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