Question 1

The nematode infection that may become more severe through ingestion of infective eggs, especially in infected infants, is:

Accepted Answer

A)   Ancylostoma duodenale
B)   Enterobius vermicularis
C)   Strongyloides stercoralis
D)   Trichinella spiralisE) A) and D)
F) C) and D)

Question 2

All of the following have life cycles that require larval lung migrations EXCEPT:

Accepted Answer

A)   Ascaris lumbricoides
B)   Necator americanus
C)   Strongyloides stercoralis
D)   Trichuris trichiuraE) B) and D)
F) B) and C)

Question 3

The nematode parasite that may complete its life cycle without leaving the host is:

Accepted Answer

A)   Ascaris lumbricoides
B)   Necator americanus
C)   Strongyloides stercoralis
D)   Toxocara canisE) All of the above
F) A) and B)

Question 4

Which of the following parasitic diseases is a zoonosis?

Accepted Answer

A)   Ascaris lumbricoides
B)   Dracunculus medinensis
C)   Strongyloides stercoralis
D)   Trichinella spiralisE) A) and B)
F) A) and C)

Question 5

The nematode infection that is acquired by ingesting a Cyclops (water flea)  is:

Accepted Answer

A)   Dracunculus medinensis
B)   Enterobius vermicularis
C)   Necator americanus
D)   Trichinella spiralisE) All of the above
F) None of the above

Question 6

Name the parasite shown in the following image:

Accepted Answer

A)   Ascaris lumbricoides egg
B)   Enterobius vermicularis egg
C)   Hookworm egg
D)   Trichuris trichiura eggE) All of the above
F) A) and D)

Question 7

Closed fecal sanitation systems had directly led to the reduction of all of the following nematode infections EXCEPT:

Accepted Answer

A)   Ascariasis
B)   Hookworm disease
C)   Strongyloidiasis
D)   TrichinosisE) B) and D)
F) None of the above

Question 8

Name the parasite shown in the following image:

Accepted Answer

A)   Ascaris lumbricoides egg
B)   Enterobius vermicularis egg
C)   Hookworm egg
D)   Trichuris trichiura eggE) A) and D)
F) A) and C)

Question 9

The rhabditiform larva of Strongyloides stercoralis has a:

Accepted Answer

A)   Long buccal cavity
B)   Sheath
C)   Large genital primordium
D)   Notched tailE) B) and C)
F) A) and D)

Question 10

Cutaneous larvamigrans is caused by:

Accepted Answer

A)   Ascaris lumbricoides
B)   Necator americanus
C)   Strongyloides stercoralis
D)   Toxocara canisE) A) and D)
F) B) and D)

Question 11

Name the parasite shown in the following image:

Accepted Answer

A)   Wuchereria bancrofti-microfilaria
B)   Filariform larva
C)   Pinworm-female
D)   Rhabditiform larvaE) All of the above
F) C) and D)

Question 12

A soldier returning from Iraq noticed a blister above his ankle that subsequently opened while he was swimming in his family pool. On further examination, he noticed a worm in the open blister. The possible parasite in this lesion is:

Accepted Answer

A)   Ancylostoma duodenale
B)   Dracunculus medinensis
C)   Toxocara canis
D)   Visceral larva migransE) A) and B)
F) B) and D)

Question 13

A microfilaria recovered in a blood sample from a patient from Vietnam had two nuclei at the tip of the tail. The worm was enclosed in a sheath. This parasite is:

Accepted Answer

A)   Brugia malayi
B)   Loa loa
C)   Onchocerca volvulus
D)   Wuchereria bancroftiE) All of the above
F) None of the above A

Question 14

All of the following infections are diagnosed by finding microfilaria in blood EXCEPT:

Accepted Answer

A)   Wuchereria bancrofti
B)   Onchocerca volvulus
C)   Loa loa
D)   Brugia malayiE) B) and D)
F) All of the above

Question 15

Which of the following parasitic diseases can cause blindness?

Accepted Answer

A)   Brugia malayi
B)   Loa loa
C)   Onchocerca volvulus
D)   Wuchereria bancroftiE) B) and C)
F) C) and D) C

Question 16

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:

Accepted Answer

A)   Enterobius vermicularis
B)   Necator americanus
C)   Trichuris trichiura
D)   Wuchereria bancroftiE) All of the above
F) A) and B) B

Question 17

Which of the following organisms or infections could be transmitted in the laboratory?

Accepted Answer

A)   Ascaris lumbricoides-Ascariasis
B)   Enterobius vermicularis-pinworm infection
C)   Strongyloides stercoralis-Strongyloidiasis
D)   Trichuris trichiura-whipworm infectionE) C) and D)
F) None of the above

Question 18

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:

Accepted Answer

A)   Definitive host phase
B)   Diagnostic stage
C)   Infective stage
D)   Method of infectionE) A) and D)
F) A) and C)

Question 19

A parasite that lives inside a host is referred to as a(n) :

Accepted Answer

A)   Accidental parasite
B)   Ectoparasite
C)   Endoparasite
D)   Facultative parasiteE) B) and C)
F) A) and D)

Question 20

Patients who have heavy infections with Necator americanus may exhibit all of the following symptoms EXCEPT:

Accepted Answer

A)   Diarrhea
B)   Larval dermatitis
C)   Macrocytic anemia
D)   Microcytic anemiaE) A) and D)
F) All of the above

Exam 1: Introduction and Nematoda

The nematode infection that may become more severe through ingestion of infective eggs, especially in infected infants, is:

Correct AnswerverifiedShow Answer

All of the following have life cycles that require larval lung migrations EXCEPT:

Correct AnswerverifiedShow Answer

The nematode parasite that may complete its life cycle without leaving the host is:

Correct AnswerverifiedShow Answer

Which of the following parasitic diseases is a zoonosis?

Correct AnswerverifiedShow Answer

The nematode infection that is acquired by ingesting a Cyclops (water flea) is:

Correct AnswerverifiedShow Answer

Name the parasite shown in the following image:

Correct AnswerverifiedShow Answer

Closed fecal sanitation systems had directly led to the reduction of all of the following nematode infections EXCEPT:

Correct AnswerverifiedShow Answer

Name the parasite shown in the following image:

Correct AnswerverifiedShow Answer

The rhabditiform larva of Strongyloides stercoralis has a:

Correct AnswerverifiedShow Answer

Cutaneous larvamigrans is caused by:

Correct AnswerverifiedShow Answer

Name the parasite shown in the following image:

Correct AnswerverifiedShow Answer

A soldier returning from Iraq noticed a blister above his ankle that subsequently opened while he was swimming in his family pool. On further examination, he noticed a worm in the open blister. The possible parasite in this lesion is:

Correct AnswerverifiedShow Answer

A microfilaria recovered in a blood sample from a patient from Vietnam had two nuclei at the tip of the tail. The worm was enclosed in a sheath. This parasite is:

Correct AnswerverifiedA

All of the following infections are diagnosed by finding microfilaria in blood EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following parasitic diseases can cause blindness?

Correct AnswerverifiedC

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:

Correct AnswerverifiedB

Which of the following organisms or infections could be transmitted in the laboratory?

Correct AnswerverifiedShow Answer

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:

Correct AnswerverifiedShow Answer

A parasite that lives inside a host is referred to as a(n) :

Correct AnswerverifiedShow Answer

Patients who have heavy infections with Necator americanus may exhibit all of the following symptoms EXCEPT:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified