Parasitology

The host in which the parasite reaches maturity is the: a) intermediate host b) definitive host c) reservoir host d) dead-end host

In this type of symbiotic relationship, one partner benefits & the other neither benefits nor is harmed: a) mutualism b) photism c) commensalism d) parasitism

The tsetse fly that transmits African sleeping sickness is considered a: a) Pest b) dead-end host c) mechanical vector d) biological vector

Int his type of symbiotic relationship both species benefit: a) mutualism b) commensalism c) parasitism d) opportunism

The definitive host for Plasmodium species is the: a) human b) mosquito c) dog d) tick

Pinworm infection is generally diagnosed by the: a) floatation method b) cellophane tape test c) ethyl acetate conc method d) direct wet mount

If the exam. of a stool specimen for ova & parasite is going to be delayed, the specimen should be: a) placed in fixative soln. b) frozen c) discarded d) left at room temp

This ameoebae is known to cause meningitis, & its trophozoite form may be seen in the CSF of infected pts: a) Schistosoma mansoni b) Entamoeba histolytica c) Giardia lamblia d) Naeglaria fowleri

One indication of helminth infection may be an elevated number of this type of WBC: a) neutrophil b) basophil c) eosinophil d) monocyte

The motility of protozoan parasites is best demonstrated by: a) direct saline mount b) conc technique c) Gomori's trichrome stain d) iodine wet mount

Thick & thin blood smears to detect Plasmodium should be stained w/: a0 trichrome stain b) wright-giemsa stain c) acid fast stain d) gram stain

The common name for Enterobius vermicularis is: a) hookworm b) pinworm c) tapeworm d) fluke

For the diagnosis of Acanthamoeba keratitis, the specimen of choice is: a) sputum b) urine c) skin biopsy d) corneal scrapings

The specimen of choice for the diagnosis of Plasmodium species, Babesia species, & filarial nematodes is: a) sputum b) feces c) duodenal aspirate d) whole blood

When trying to recover the microfilariae of Wuchereria bancrofti, the blood should be collected after 10 PM because the organism has: a) an intraerythrocytic cycle b) dirunal periodicity c) nocturnal periodicity d) sequestered antigens