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Parasites
| Question | Answer |
|---|---|
| A patient was treated with immunosuppressant drugs during a kidney transplant and subsequently exhibited symptoms of two parasitic infections. Which were they? | Toxoplasma gondii, Strongyloides stercoralis |
| Which one of the following parasites is not found most prevalently in North or South America? | Paragonimus westermani |
| The intermediate host for Taenia saginata is: | Cow |
| Which of the following are the diagnostic morphologic characteristics for Entamoeba histolytica? (Choose all that apply.) | Centrally located karyosome, Ingested RBC |
| Which require no intermediate host? (Choose all that apply.) | Hymenolepis nana, Giardia lamblis, Strongyloides stercoralis, Trichuris trichiura |
| Which cestode produces an operculated egg? | Diphyllobothrium latum |
| A stained blood smear reveals giant platelets and many reticulocytes containing Schuffner's dots, large ring forms, and schizonts with 12 to 24 merozoites. You would name this as: | Plasmodium vivax |
| When purged specimens are to be examined for amoebae, which of the following should be used to obtain the specimen? | Fleet Phospho-Soda |
| A stained fecal smear reveals mononucleate flagellates with a comma-shaped posterior, and lemon-shaped mononucleate cysts with a clear, nipplelike bleb at one end. You would name this as: | Chilomastix mesnili |
| Infection with Brugia malayi is best diagnosed by: | Knott concentration test |
| Which of the following is not a method of toxoplasmosis infection? | Mosquito bite |
| Which of the following conditions is not a zoonotic infection? | Scabies |
| Cercariae of this parasite penetrate the skin of humans, thereby causing infection. | Schistosoma japonicum |
| These two infections were found by stool examination of a child who had a history of eating dirt. | Ascaris lumbricoides, Trichuris trichiura |
| Recovery in human feces of a 7-mm-long gravid proglottid containing eight lateral uterine branches indicates infection with: | Taenia solium |
| This parasite was found in the blood smear of a patient who had a recent summer vacation in New England and reported many insect and tick bites. | Babesia spp. |
| Pinworm disease can be best diagnosed by using: | The cellophane tape test |
| A small, operculated egg with a light bulb shape was found in the feces of a patient with liver abnormalities. | Clonorchis sinensis |
| Mature trophozoites and young schizonts in blood smear show a distinct tendency toward band formation and the red blood cells are not enlarged. | Plasmodium malariae |
| Found in the feces of a patient complaining of abdominal distress and diarrhea. | Giardia lamblia |
| Only one of the following parasites produces eggs that are immediately invective to humans, and the eggs infect a person directly via ingestion. Which is it? | Enterobius vermicularis |
| Which of the following intestinal protozoa is not identified as a causative agent of diarrhea? | Entamoeba coli |
| The trichrome stain is used to identify: | Intestinal protozoa |
| Below are listed sources of error that may affect a quality smear stained for parasites. Identify which one is not a source of error. | Blood smear too new |
| The head of the scolex of Diphyllobothrium latum: | Has two sucking grooves |
| Egg has a large lateral spine. | Schistosoma mansoni |
| Which of the following is the best transport preservative for protozoa or flagellate trophozoites? | PVA |
| The cysticercus larva form is found where noted as part of the life cycle of which parasite? | In pork muscle; Taenia solium |
Created by:
jParette
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