TEST BANK FOR MEDICAL PARASITOLOGY A SELF INSTRUCTIONAL TEXT, 6TH EDITION: LEVENTHAL

Leventhal: Medical Parasitology, Ed. 6 Multiple Choice Questions - Chapter 2 Chapter 2. Nematoda 1. In a general nematode parasite's life cycle, the host may ingest a fertile egg. This stage of the life cycle is referred to as the: a. Definitive host phase b. Diagnostic stage c. Infective stage d. Method of infection 2. The nematode infection that may become more severe through ingestion of infective eggs, especially in infected infants, is: a. Ancylostoma duodenale b. Enterobius vermicularis c. Strongyloides stercoralis d. Trichinella spiralis 3. In the Ascaris lumbricoides life cycle, after eggs are ingested, the next stage in the life cycle that must occur before a mature adult can live in the host's intestine is called the: a. Diagnostic stage b. Infective stage c. Liver-lung migration d. Method of infection 4. Patients who have heavy infections with Necator americanus may exhibit all of the following symptoms EXCEPT: a. Diarrhea b. Larval dermatitis c. Macrocytic anemia d. Microcytic anemia 5. The nematode egg that appears as a barrel-shaped structure with clear polar plugs at each end of the egg belongs to: