7. Ring forms and gametocytes are the ONLY forms normally observed in the peripheral blood of which Plasmodium spp.?

11. Humans contract Chagas disease when the reduviid bug defecates while taking a blood meal and the parasites in the feces are rubbed or scratched into the bite wound or onto mucosal surfaces. Which stage in the blood infects the host cells?

2. Which of the following flagellates has a single nucleus in the cyst and the typical, curved cytostomal fibril, which is called a shepherd’s crook?

36. This organism is generally transmitted by the ingestion of contaminated meat from a pig. 

16. Ectoparasites produce infestations.

29. Trematodes may be found in each of the following sites within the human host, except:

19. Which of the following is not part of an Ova and Parasite examination?

14. Hyphae with fenestrations are called: 

1. This organism mimics Plasmodium falciparum because many can infect a single RBC. It usually infects domestic and wild animals, but can cause human infection. The tetrad or “Maltese cross” forms are characteristic. The parasite is most likely:

3. A watery stool was submitted to the laboratory for O & P examination. The technologist notes numerous trophozoites that have non-progressive, blunt pseudopods.  The trophozoites contain one nuclei with a large, irregular shaped, eccentric karyosome, coarse and unevenly distributed peripheral chromatin, and bacteria within cytoplasmic vacuoles. The technologist should: