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7 Cards in this Set

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Most common helminth infection in humans worldwide. Causes GI obstruction, granulomas of the biliary tree, liver abscesses, and hypersensitivity pneumonitis.
Ascaris Lumbricoiodes

Consume Eggs
Intestine-blood-lungs
Fecal eggs
Eosinophilia
This worm causes iron deficiency anemia and is acquired when the larvae penetrate the skin. Each worm consumes .25ml blood/day.
Necator Americanus (new)
Ancyclostoma Duodenale (old)
(Hookworm)

Foot-Lung
Fecal eggs
Eosinophilia
The smallest of all intestinal nematodes, high worm burden is possible the result of Autoinfection.
Strongyloides Stercoralis (Threadworm)

Foot-Lung
Fecal Larvae
Eosinophilia
Autoinfection-the only itestinal nematode capeable of completing its lif cycle within the human host.
Infection is acquired by consuming cysts in undercooked contaminated pork. Infection results in flue-like symptoms, diarrhea, myalgias, and periorbiatal edema.
Trichinella Spiralis

Cyst-intest-mm
Fecal worms
Esosinophilia
Elevated CPK
Dx: mm biopsy
Rectal Prolapse is a potential complication in children resulting from straining during defecation with infection of this nematode.
Trichuris trichiura (Whipworm/Bullwhip)

Dx: barrel-shaped eggs with polar plugs

Egg-Intestine-Cecum
Fecal Eggs-Footballs
Normal Eosinophils
Causes perianal pruritis, with diagnosis confirmed by the recovery of the ehggs from the anus with scotch tape
Enterobius Vermicularis (Pinworm)
Most common helminth infection in the US, associated with Day-care institutions.

Eggs-intestine-cecum
Normal eosinophils
Intestinal Nematode Tx:
Static
Mebendazole
Thiabendazole
albendazole

Cidal
Pyrantel Pamoate