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31 Cards in this Set
- Front
- Back
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A party was given at the home of a sheep rancher, who also grew fresh organic vegetables in her garden. She served watercress sandwiches to the guests. Several of the guests later suffered from jaundice, hepatomegaly and diarrhea. They most likely contracted
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Fasciola hepatica
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What is the method of infection for Heterophyes heterophyes
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human eats undercooked fish
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An egg measuring 180 by 80 um with a large lateral spine is characteristic of ________________ and would most often be found in a ___________specimen.
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Schistosoma mansoni in urine
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In Blood flukes, when the cercaria penetrates human skin the tail is left behind. The cercaria then becomes
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a schistosomule
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Which of the following Trematodes does not have a secondary intermediate hosts and is typically found in the urine?
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Shistosoma haematobium
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This adult parasites does NOT live in the intestinal tract
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Loa loa
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Charcoladen crystals may be seen in stool preparations. They are breakdown products
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Eosinophils
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A patient presents with vague abdominal pains and a microcytic anemia. A possible cause of this is
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Ancylostoma duodenale
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In which 3 nematodes can cause pneumonia -like syndrome in a person exposed to heavy infection
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Nectar americanus, Ascaris lumbricoides, or Strongyloides stercoralis
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The examination of stool is of no help in the detection of
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Echinococcus granulosis
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The tapeworm that has a scolex without cup shaped suckers is
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Diphyllobothrium latum
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Mature eggs of an adult tapeworm accumulate in the
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Gravid proglottid
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A patient from the Great Lakes area presents with vague abdominal symptoms and a macrocytic anemia. Which cestode would be the probable cause?
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Diphyllobothrium latum
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A type of tapeworm larva with a large bladder producing daughter cysts,broad capsules and numerous scolices is
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Hydatid cyst
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The number of uterine branches in the mature proglottid of Taenia saginata is
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More than 14
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Which cestode produces an operculated egg?
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Diphyllobothrium latum
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The eggs of which two species are infective to humans if ingested, resulting in larval stages and pathology in the host's tissues?
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Echinococcus granulosus and Taenia solium
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Pinworm disease may be diagnosed by which procedure?
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Cellophane or Scotch tape prep
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An immunocompromised patient is susceptible to autoinfection with which one of the nematodes?
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Stongyloides strecoralis
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A sputum specimen contains tinges of blood and operculated eggs with opercular shoulders, a smooth thin shell and terminal thickening of the shell. This organism is:
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Paragonimus westermani
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Flat, leaf-shaped flukes belong to the class
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Digenea
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The recommended treatment for Clonorchiasis is?
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Praziquantel
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Taenia solium tapeworm infection occurs when
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Undercooked pork is eaten
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In the Diphyllobothrium latum life cycle, the infective stage for humans is
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Pleurocercoid
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A scolex is recovered in human feces after the patient is treated with medication. The scolex bears four cup-shaped suckers and no hooks. This parasite is
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Taenia saginata
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The most common helminth infection in the United states is
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Enterobius vermicularis
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The common name for Necator americanus
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Hookworm
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the correct sequence for the life cycle of Fasciolopsis buski
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1. miracidium hatch
2. enter intermediate host 3. sporocyst 4. redia 1 and 2 5. encysted metarcercarie on water plants 6. human eats water plants |
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The causative agent of cystecercosis is
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Taenia solium
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Eggs from which tapeworm, when passed , are immediately infective to humans?
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Echinococcus granulosus
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Packets of tapeworm eggs encapsulated in a single membrane were recovered in feces. This parasite is
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Dipylidium caninum
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