Question 1

Hookworm infestation

Accepted Answer

A)  can cause iron deficiency and anaemia.
B)  is always symptomatic,characterised by a bloody diarrhoea.
C)  remains localised in the intestine.
D)  occurs when cysts are ingested in contaminated drinking water.
E)  all of the above.F) A) and D)
G) B) and E)

Question 2

Which of the following organisms is responsible for the most cases of bacterial diarrhoea in Australia?

Accepted Answer

A)  Helicobacter pylori.
B)  Campylobacter jejuni.
C)  Salmonella sp.
D)  E.coli.
E)  Staphylococcus aureus.F) A) and C)
G) B) and C)

Question 3

Which of the following organisms is the most common cause of travellers' diarrhoea?

Accepted Answer

A)  Pneumocystis jiroveci.
B)  Cryptosporidium parvum.
C)  Cryptococcus neoformans.
D)  E.Coli.
E)  Hepatitis A virus.F) A) and B)
G) A) and E) D

Question 4

Which of the following does NOT cause hepatitis in humans?

Accepted Answer

A)  Cytomegalovirus.
B)  Epstein-Barr virus.
C)  Rubeola virus.
D)  Hepatitis B virus.
E)  Hepatitis C virus.F) C) and D)
G) A) and B)

Question 5

Which of the following statements is TRUE?

Accepted Answer

A)  Most intestinal pathogens invade the intestine and spread to other parts of the body.
B)  Only bacteria cause gastroenteritis.
C)  Gastrointestinal infection always results in diarrhoea.
D)  Acute diarrhoeal infections can be fatal due to fluid loss.
E)  Gastrointestinal infections are always associated with contaminated food.F) B) and D)
G) D) and E)

Question 6

Amoebic dysentery

Accepted Answer

A)  is caused by Cryptosporidium parvum.
B)  causes ulceration over the whole of the intestinal tract.
C)  is endemic in the northern parts of Australia.
D)  remains localised in the intestine.
E)  all of the above.F) A) and B)
G) B) and E)

Question 7

Hepatitis A

Accepted Answer

A)  has a short incubation period of around two days.
B)  is most severe in young children.
C)  virus is closely related to all the other hepatitis viruses.
D)  does not generally cause chronic infection.
E)  cannot be prevented by vaccination.F) A) and B)
G) D) and E)

Question 8

Hepatitis B can be transmitted by

Accepted Answer

A)  male homosexual contact.
B)  exposure to infected patient blood.
C)  at birth,from infected mother to baby.
D)  intravenous drug use.
E)  all of the above.F) A) and E)
G) A) and D)

Question 9

Norovirus infections

Accepted Answer

A)  are commonly associated with the consumption of shellfish.
B)  are spread by the faecal-oral route.
C)  require a low infective dose.
D)  can be spread on contaminated fomites.
E)  all of the above.F) All of the above
G) B) and E)

Question 10

What is the most important aspect of patient management for most gastrointestinal infections?

Accepted Answer

A)  Bed rest.
B)  Administration of antitoxin.
C)  Antimicrobial therapy.
D)  Fluid and electrolyte replacement.
E)  Use of anti-motility drugs.F) A) and C)
G) D) and E)

Question 11

What is the most common risk factor for hepatitis C virus infection in developed countries?

Accepted Answer

A)  Blood transfusion.
B)  Intravenous drug abuse.
C)  Unprotected sex.
D)  Perinatal transmission.
E)  Mosquito bite.F) A) and D)
G) A) and E)

Question 12

Which of the following could be transmitted by needlestick injury?

Accepted Answer

A)  Hepatitis B.
B)  Hepatitis C.
C)  Hepatitis D.
D)  All of the above.
E)  None of the above.F) B) and C)
G) All of the above

Question 13

Clostridium perfringens

Accepted Answer

A)  can cause gangrene.
B)  forms resistant endospores.
C)  is commonly found in the environment .
D)  can cause diarrhoea.
E)  all of the above.F) A) and E)
G) A) and D)

Question 14

Which of the following is a gastrointestinal disease?

Accepted Answer

A)  Ross River fever.
B)  Rotavirus infection.
C)  Yellow fever.
D)  Scrub typhus.
E)  Malaria.F) All of the above
G) A) and D) B

Question 15

Shigella are organisms which

Accepted Answer

A)  invade the intestinal lining.
B)  do not have an endotoxin.
C)  have been completely eradicated by vaccination.
D)  cause amoebic dysentery.
E)  rarely cause infections in children.F) C) and D)
G) All of the above

Question 16

Listeria monocytogenes

Accepted Answer

A)  is an infection only of humans.
B)  is most commonly spread directly from person to person.
C)  is endemic in the northern parts of Australia.
D)  can cause serious foetal infections.
E)  all of the above.F) A) and B)
G) B) and C) D

Question 17

Salmonellosis

Accepted Answer

A)  is rare in developed countries.
B)  is a food intoxication.
C)  is often associated with poultry meat or foods containing eggs.
D)  should always be treated with antimicrobial drugs.
E)  all of the above.F) D) and E)
G) A) and E)

Question 18

Inflammatory diarrhoea

Accepted Answer

A)  usually involves the small intestine.
B)  is a profuse diarrhoea without blood and white cells.
C)  is often accompanied by fever.
D)  does not result from the action of toxins.
E)  all of the above.F) A) and E)
G) B) and E)

Question 19

Which of the following statements is FALSE?

Accepted Answer

A)  Typhoid fever is caused by Salmonella typhi.
B)  Salmonella can remain in the gall bladder or liver after the patient has recovered.
C)  All patients who have typhoid become chronic carriers.
D)  A vaccine is available for typhoid.
E)  Typhoid fever is transmitted by the faecal-oral route.F) A) and E)
G) A) and D)

Question 20

Which of the following bacteria cause gastrointestinal symptoms that are due to an exotoxin?

Accepted Answer

A)  Staphylococcus aureus.
B)  Clostridium perfringens.
C)  Vibrio cholerae.
D)  E.coli.
E)  All of the above.F) A) and E)
G) None of the above

Exam 18: Gastrointestinal Tract Infections

Hookworm infestation

Correct AnswerverifiedShow Answer

Which of the following organisms is responsible for the most cases of bacterial diarrhoea in Australia?

Correct AnswerverifiedShow Answer

Which of the following organisms is the most common cause of travellers' diarrhoea?

Correct AnswerverifiedD

Which of the following does NOT cause hepatitis in humans?

Correct AnswerverifiedShow Answer

Which of the following statements is TRUE?

Correct AnswerverifiedShow Answer

Amoebic dysentery

Correct AnswerverifiedShow Answer

Hepatitis A

Correct AnswerverifiedShow Answer

Hepatitis B can be transmitted by

Correct AnswerverifiedShow Answer

Norovirus infections

Correct AnswerverifiedShow Answer

What is the most important aspect of patient management for most gastrointestinal infections?

Correct AnswerverifiedShow Answer

What is the most common risk factor for hepatitis C virus infection in developed countries?

Correct AnswerverifiedShow Answer

Which of the following could be transmitted by needlestick injury?

Correct AnswerverifiedShow Answer

Clostridium perfringens

Correct AnswerverifiedShow Answer

Which of the following is a gastrointestinal disease?

Correct AnswerverifiedB

Shigella are organisms which

Correct AnswerverifiedShow Answer

Listeria monocytogenes

Correct AnswerverifiedD

Salmonellosis

Correct AnswerverifiedShow Answer

Inflammatory diarrhoea

Correct AnswerverifiedShow Answer

Which of the following statements is FALSE?

Correct AnswerverifiedShow Answer

Which of the following bacteria cause gastrointestinal symptoms that are due to an exotoxin?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

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
B

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified