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Medical Parasitology
TEST BANK for Medical Parasitology, 7th Edition by Leventhal; Cheadle, All 11 Chapters Covered, Verified Latest Edition TEST BANK for Medical Parasitology, 7th Edition by Ruth Leventhal; Russell F. Cheadle | Verified Chapter's 1 - 11 | Complete Newest Version Test Bank For Leventhal - Medical Paras...
TEST BANK for Medical Parasitology: A Self-Instructional Text, 7th Edition by Leventhal; Cheadle, All 11 Chapters Covered, Verified Latest Edition
TEST BANK for Medical Parasitology: A Self-Instructional Text, 7th Edition by Leventhal; Cheadle, All 11 Chapters Covered, Verified Latest Edition
TEST BANK for Medical Parasitology: A Self-Instructional Text, 7th Edition by Leventhal; Cheadle, All 11 Chapters Covered, Verified Latest Edition
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TEST BANK For Medical Parasitology 7th Edition by Ruth
Leventhal & Russell F. Cheadle
KA
Chapter 1. Introduction
(All Answers at the End of Every Chapter)
G
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:
U
a. Definitive host phase
b. Diagnostic stage
c. Infective stage
A
d. Method of infection
2. A parasite that lives inside a host is referred to as a(n):
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
d. Facultative parasite
3. Zoonosis is a term used to describe humans’ relationship with a(n):
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
,d. Facultative parasite
4. An animal that harbors a parasite that can also infect humans is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
d. Transport host
5. The host in which the parasite reaches sexual or reproductive maturity is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
KA
d. Transport host
G
U
A
,Answer Key for Chapter 1. Introduction
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
ANS: C
RATIONALE: This is the stage of the life cycle at which the parasite is capable of entering and
developing within the host. It is a required part of the life cycle of that parasite.
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
KA
2. A parasite that lives inside a host is referred to as a(n):
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
d. Facultative parasite
G
ANS: C
RATIONALE: Endoparasites live inside the host. Ectoparasites live on the outside of the host.
U
Facultative parasites can live as well outside the host as inside the host; host infection usually
occurs accidentally. Other accidental parasites may include parasites that usually infect other
animals.
A
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
3. Zoonosis is a term used to describe humans’ relationship with a(n):
a. Accidental parasite
b. Ectoparasite
c. Endoparasite
d. Facultative parasite
ANS: A
RATIONALE: Zoonosis is an accidental infection with a parasite that usually parasitizes
animals. Endoparasites live inside the host. Ectoparasites live outside the host. Facultative
,parasites can live as well outside the host as inside the host; host infection usually occurs
accidentally.
KEY: Introduction: parasite definitions/life cycles | Cognitive level: recall
4. An animal that harbors a parasite that can also infect humans is referred to as a(n):
a. Definitive host
b. Intermediate host
c. Reservoir host
d. Transport host
ANS: C
RATIONALE: Reservoir hosts harbor parasites that are also infective for humans. Infections
occur when humans encounter infected animals or infective forms related to that parasite’s life
cycle.
KA
KEY: Introduction: parasite-host relationships | Cognitive level: recall
5. The host in which the parasite reaches sexual of reproduction maturity is referred to as a(n):
G
a. Definitive host
b. Intermediate host
c. Reservoir host
U
d. Transport host
A
ANS: A
RATIONALE: The definitive host harbors the parasite in its complete form, which promotes
continuance of the parasite’s life cycle. A reservoir host also serves as a definitive host.
KEY: Introduction: parasite-host relationships | Cognitive level: recall
,Chapter 2. Nematoda
1. A clinical sign that may suggest the presence of a filarial nematode infection is:
a. Diarrhea
b. Eosinophilia
c. Jaundice
d. Microcytic anemia
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
KA
c. Strongyloides stercoralis
d. Trichinella spiralis
G
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
U
b. Infective stage
c. Liver-lung migration
A
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:
a. Ascaris lumbricoides
b. Enterobius vermicularis
c. Strongyloides stercoralis
d. Trichuris trichiura
6. A slender round worm measuring 25 cm was recovered from a toilet following a child’s trip
to the bathroom. The specimen most likely is:
a. Ascaris lumbricoides
b. Enterobius vermicularis
c. Strongyloides stercoralis
d. Trichuris trichiura
KA
7. A 7-year-old boy’s CBC revealed a microcytic anemia with eosinophilia during an office visit
for symptoms of diarrhea. The most likely parasite involved in the infection is:
a. Enterobius vermicularis
G
b. Necator americanus
c. Trichuris trichiura
d. Wuchereria bancrofti
U
A
8. Which of the following infections is not diagnosed by finding eggs or lava in fecal
specimens?
a. Ascaris lumbricoides
b. Necator spp.
c. Trichinella spiralis
d. Trichuris trichiura
9. Which of the following parasitic diseases is a zoonosis?
a. Ascaris lumbricoides
b. Dracunculus medinensis
c. Strongyloides stercoralis
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