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Patho Ch 9 Questions and Correct Answers
1. Which of the following statements regarding cryptosporidiosis
is INCORRECT?
A. Infection may be acquired from drinking water contaminated
with parasite cysts.
B. Parasites are present in the intestinal tracts of cattle and many
farm animals, and infectious cysts are excreted in their feces.
C. Parasite cysts are quite fragile and do not normally survive
outside of the intestinal tract of infected persons.
D. Infection may be acquired from swimming in a swimming pool
in which the pool water has been contaminated by parasite cysts
from the perianal skin of infected persons with diarrhea who have
also been swimming in the pool.
E. Infection causes an acute self-limited diarrhea in
immunocompetent persons, but may cause chronic life-threatening
diarrhea in immunocompromised persons. Ans: C. Parasite cysts
are quite fragile and do not normally survive outside of the
intestinal tract of infected persons.
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2. Many parasites are transmitted by contaminated food or water
or by contact with infected animals. Which of the following
parasitic diseases is NOT transmitted in this manner?
A. Toxoplasmosis
B. Giardiasis
C. Malaria
D. Cryptosporidiosis Ans: C. Malaria
3. Pregnant women susceptible to toxoplasma infection should
avoid contact with which of the following?
A. Mosquitoes
B. Cat feces
C. Raw sewage
D. Ticks Ans: B. Cat feces
4. Which of the following conditions may result from contact with
cat feces?
© 2025 All rights reserved
Patho Ch 9 Questions and Correct Answers
1. Which of the following statements regarding cryptosporidiosis
is INCORRECT?
A. Infection may be acquired from drinking water contaminated
with parasite cysts.
B. Parasites are present in the intestinal tracts of cattle and many
farm animals, and infectious cysts are excreted in their feces.
C. Parasite cysts are quite fragile and do not normally survive
outside of the intestinal tract of infected persons.
D. Infection may be acquired from swimming in a swimming pool
in which the pool water has been contaminated by parasite cysts
from the perianal skin of infected persons with diarrhea who have
also been swimming in the pool.
E. Infection causes an acute self-limited diarrhea in
immunocompetent persons, but may cause chronic life-threatening
diarrhea in immunocompromised persons. Ans: C. Parasite cysts
are quite fragile and do not normally survive outside of the
intestinal tract of infected persons.
© 2025 All rights reserved
, 2 | Page
2. Many parasites are transmitted by contaminated food or water
or by contact with infected animals. Which of the following
parasitic diseases is NOT transmitted in this manner?
A. Toxoplasmosis
B. Giardiasis
C. Malaria
D. Cryptosporidiosis Ans: C. Malaria
3. Pregnant women susceptible to toxoplasma infection should
avoid contact with which of the following?
A. Mosquitoes
B. Cat feces
C. Raw sewage
D. Ticks Ans: B. Cat feces
4. Which of the following conditions may result from contact with
cat feces?
© 2025 All rights reserved
