Question 1

Which is incorrect about shigellosis?

Accepted Answer

A)  Outbreaks have occurred in day care centers.
B)  Watery diarrhea with bloody,mucoid stools and abdominal cramps.
C)  It frequently involves septicemia.
D)  Human carriers cause fecal transmission.
E)  It is also called dysentery.F) A) and E)
G) B) and E)

Question 2

Orchitis and epididymitis are seen in young adult males as a complication of

Accepted Answer

A)  croup.
B)  mumps.
C)  influenza.
D)  measles (rubeola) .
E)  rubella.F) C) and E)
G) C) and D) B

Question 3

The most common cause of liver cancer in the United States is

Accepted Answer

A)  HAV.
B)  HBV.
C)  HCV.
D)  HDV.
E)  HEV.F) A) and B)
G) B) and C)

Question 4

All of the following are characteristics of Campylobacter jejuni except it

Accepted Answer

A)  is transmitted through ingestion of contaminated chicken,meat,milk,and water.
B)  causes fever and a watery stool.
C)  infects the stomach.
D)  produces an enterotoxin that stimulates diarrhea.
E)  has gram-negative curved rods with darting motility.F) A) and E)
G) A) and B)

Question 5

The only body fluid that can transmit hepatitis B virus is blood.

Accepted Answer

A) True 
 B)False

Question 6

Ascaris lumbricoides

Accepted Answer

A)  is an intestinal roundworm.
B)  spreads to humans by ingestion of Ascaris eggs in food.
C)  larvae penetrate into lymphatics and capillaries around intestines.
D)  larvae migrate to the pharynx,get swallowed,and return to intestines to mature.
E)  All of the choices are correct.F) C) and D)
G) A) and D)

Question 7

Only feces from humans that contaminate food and water can be involved in transmission of amoebiasis.

Accepted Answer

A) True 
 B)False

Question 8

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
  You are taking care of Jennifer, a 6-year-old girl in your pediatric ICU. She had bloody diarrhea and fever for a few days, before her parents noted she had not urinated in a few days. She was admitted for a rising potassium level, as well as decreased blood urea nitrogen (BUN)  and creatinine clearance, which are very specific markers of kidney function. She was diagnosed with hemolytic uremic syndrome (HUS) , and interestingly, it was traced back to drinking unpasteurized milk.
-What organism is the leading cause of HUS in the United States?

Accepted Answer

A)  Shigella
B)  E.coli
C)  Salmonella
D)  Clostridium difficileE) B) and D)
F) B) and C)

Question 9

Liver flukes live in all of the following areas except the

Accepted Answer

A)  small intestine.
B)  liver.
C)  gallbladder.
D)  bile duct.
E)  All of the choices are correct.F) A) and D)
G) None of the above A

Question 10

All of the following pertain to tapeworms except

Accepted Answer

A)  scolex is the head.
B)  strobila is made up of proglottids.
C)  proglottids are reproductive segments.
D)  cysticerci are young infective larvae ingested in undercooked meat.
E)  eosinophilia does not occur.F) A) and E)
G) All of the above

Question 11

Oral flora bacteria on the tooth surface

Accepted Answer

A)  develop a biofilm.
B)  use fimbriae and slime layers to adhere.
C)  include Streptococci that metabolize sucrose,produce sticky glucans,and form plaque.
D)  include Lactobacilli and Streptococci,which ferment carbohydrates and produce acids that cause caries.
E)  All of the choices are correct.F) A) and B)
G) A) and C)

Question 12

Which organ of the GI tract has a large commensal population of microorganisms?

Accepted Answer

A)  liver
B)  salivary glands
C)  pancreas
D)  large intestine
E)  small intestineF) B) and C)
G) B) and D)

Question 13

The virulence factor for mumps is

Accepted Answer

A)  inflammation.
B)  acid production.
C)  endotoxin.
D)  enterotoxin.
E)  spike-induced syncytium.F) A) and B)
G) C) and E)

Question 14

Hepatitis B infection

Accepted Answer

A)  has an incubation of 2 to 7 weeks.
B)  can be transmitted by the fecal-oral route.
C)  increases risk for hepatocellular cancer.
D)  is responsible for most cases of posttransfusion hepatitis.
E)  All of the choices are correct.F) D) and E)
G) A) and B)

Question 15

Which is not true of Clostridium difficile?

Accepted Answer

A)  a gram-positive,endospore forming rod
B)  part of normal intestinal biota
C)  infection precipitated by broad-spectrum antibiotic therapy
D)  also called pseudomembranous colitis
E)  produces "rice-water" stoolsF) A) and E)
G) None of the above

Question 16

Inflammation of the liver with necrosis of the hepatocytes and swelling due to a mononuclear response is a disease called

Accepted Answer

A)  hepatitis.
B)  jaundice.
C)  liver cancer.
D)  mononucleosis.
E)  None of the choices is correct.F) B) and E)
G) C) and D) A

Question 17

Which of the following helminths is paired with a correct characteristic/s of its pathogenesis?

Accepted Answer

A)  Ascaris lumbricoides - life and transmission cycle B
B)  Necator americanus - life and transmission cycle A
C)  Trichuris trichuria - life and transmission cycle B
D)  Strongyloides stercoralis - life and transmission cycle B
E)  Taenia solium - life and transmission cycle AF) C) and D)
G) A) and B)

Question 18

Enterobius vermicularis is

Accepted Answer

A)  a whipworm.
B)  common only to the tropics and subtropics.
C)  an intestinal worm that easily contaminates fingers and fomites.
D)  often fatal in heavy infestations.
E)  All of the choices are correct.F) All of the above
G) A) and C)

Question 19

E.coli O157:H7 secretes shiga exotoxin.

Accepted Answer

A) True 
 B)False

Question 20

Outbreaks of which apicomplexan disease have been associated with fecal-contaminated imported raspberries and also fresh greens and drinking water?

Accepted Answer

A)  cryptosporidiosis
B)  cyclosporiasis
C)  trichinosis
D)  toxoplasmosis
E)  None of the choices is correct.F) C) and E)
G) A) and D)

Exam 20: Infectious Diseases Affecting the Gastrointestinal Tract

Which is incorrect about shigellosis?

Correct Answer
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Orchitis and epididymitis are seen in young adult males as a complication of

Correct Answer
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B

The most common cause of liver cancer in the United States is

Correct Answer
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All of the following are characteristics of Campylobacter jejuni except it

Correct Answer
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The only body fluid that can transmit hepatitis B virus is blood.

Correct Answer
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Ascaris lumbricoides

Correct Answer
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Only feces from humans that contaminate food and water can be involved in transmission of amoebiasis.

Correct Answer
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Correct Answer
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Liver flukes live in all of the following areas except the

Correct Answer
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A

All of the following pertain to tapeworms except

Correct Answer
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Oral flora bacteria on the tooth surface

Correct Answer
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Which organ of the GI tract has a large commensal population of microorganisms?

Correct Answer
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The virulence factor for mumps is

Correct Answer
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Hepatitis B infection

Correct Answer
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Which is not true of Clostridium difficile?

Correct Answer
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Inflammation of the liver with necrosis of the hepatocytes and swelling due to a mononuclear response is a disease called

Correct Answer
verified
A

Which of the following helminths is paired with a correct characteristic/s of its pathogenesis?

Correct Answer
verified

Enterobius vermicularis is

Correct Answer
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E.coli O157:H7 secretes shiga exotoxin.

Correct Answer
verified

Outbreaks of which apicomplexan disease have been associated with fecal-contaminated imported raspberries and also fresh greens and drinking water?

Correct Answer
verified

Exam 20: Infectious Diseases Affecting the Gastrointestinal Tract

Which is incorrect about shigellosis?

Correct AnswerverifiedShow Answer

Orchitis and epididymitis are seen in young adult males as a complication of

Correct AnswerverifiedB

The most common cause of liver cancer in the United States is

Correct AnswerverifiedShow Answer

All of the following are characteristics of Campylobacter jejuni except it

Correct AnswerverifiedShow Answer

The only body fluid that can transmit hepatitis B virus is blood.

Correct AnswerverifiedShow Answer

Ascaris lumbricoides

Correct AnswerverifiedShow Answer

Only feces from humans that contaminate food and water can be involved in transmission of amoebiasis.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Liver flukes live in all of the following areas except the

Correct AnswerverifiedA

All of the following pertain to tapeworms except

Correct AnswerverifiedShow Answer

Oral flora bacteria on the tooth surface

Correct AnswerverifiedShow Answer

Which organ of the GI tract has a large commensal population of microorganisms?

Correct AnswerverifiedShow Answer

The virulence factor for mumps is

Correct AnswerverifiedShow Answer

Hepatitis B infection

Correct AnswerverifiedShow Answer

Which is not true of Clostridium difficile?

Correct AnswerverifiedShow Answer

Inflammation of the liver with necrosis of the hepatocytes and swelling due to a mononuclear response is a disease called

Correct AnswerverifiedA

Which of the following helminths is paired with a correct characteristic/s of its pathogenesis?

Correct AnswerverifiedShow Answer

Enterobius vermicularis is

Correct AnswerverifiedShow Answer

E.coli O157:H7 secretes shiga exotoxin.

Correct AnswerverifiedShow Answer

Outbreaks of which apicomplexan disease have been associated with fecal-contaminated imported raspberries and also fresh greens and drinking water?

Correct AnswerverifiedShow Answer

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B

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A

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A

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