©THESTAR 2024/2025 ALL RIGHTS RESERVED.
Gastroenteritis Exam Questions And
Answers 100% Guaranteed Pass.
Gastroenteritis - Answer✔an inflammation of the lining of the stomach and intestines and is
predominantly manifested by the following symptoms:
a) anorexia
b) nausea
c) vomiting
d) diarrhea
e) abdominal discomfort
Traveler's diarrhea - Answer✔gastroenteritis in travelers usually caused by bacteria endemic to
the local water; most common cause is enterotoxigenic E. coli. E. coli organisms are commonly
present in the water supplies of areas that lack adequate water purification. Infection is
common in persons traveling to some areas in Mexico and Latin America, the Middle East, Asia,
and Africa.
signs and symptoms if Traveler's diarrhea - Answer✔Nausea, vomiting, borborygmi ("blurp
blurp"), abdominal cramps, and diarrhea begin 12 to 72 hours after ingesting contaminated
food or water. Diarrhea is the watery type.
watery diarrhea - Answer✔Traveler's diarrhea
treatment of Traveler's diarrhea - Answer✔Antibiotics generally are not recommended for mild
diarrhea in patients without fever or blood in the stools as they may alter intestinal flora
adversely and promote resistant organisms.
For more severe diarrhea (three or more loose stools over 8 hours), antibiotics may be
indicated, especially if vomiting, abdominal cramps, fever, or bloody stools are present.
1|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED.
Escherichia coli 0157:H7 infection - Answer✔characterized by acute bloody diarrhea, which
may lead to the hemolytic-uremic syndrome; produce high levels of toxins that are
indistinguishable from the potent cytotoxin produced by Shigella dysenteriae. These Shiga
toxins are produced in the large intestine after ingestion of enterohemorrhagic E. coli.
The toxins cause direct mucosal damage and endothelial damage in the walls of blood vessels.
If absorbed into the bloodstream they can exert their toxic effects on other vascular endothelia
such as the kidney.
E. coli serotype 0157: H7 - Answer✔is the most common in North America;
hemorrhagic colitis occur after ingestion of undercooked beef (especially ground beef) or
unpasteurized milk
hemorrhagic E. coli - Answer✔Escherichia coli 0157:H7 infection
E. coli
ferments lactose - Answer✔Shigella doesn't
bloody diarrhea - Answer✔E. coli 0157: H7 infection
complications of E. coli 0157: H7 infection - Answer✔hemolytic-uremic syndrome (HUS), which
is characterized by the following:
1. hemolytic anemia
2. thrombocytopenia
3. acute renal failure
prophylaxis of E. coli 0157: H7 infection - Answer✔1. Proper disposal of the feces of infected
persons, good hygiene, and careful hand washing with soap help limit the spread of infection.
2. Pasteurization of milk and thorough cooking of beef prevent foodborne transmission.
3. Reporting outbreaks of bloody diarrhea to public health authorities can prevent additional
infections.
2|Page
Gastroenteritis Exam Questions And
Answers 100% Guaranteed Pass.
Gastroenteritis - Answer✔an inflammation of the lining of the stomach and intestines and is
predominantly manifested by the following symptoms:
a) anorexia
b) nausea
c) vomiting
d) diarrhea
e) abdominal discomfort
Traveler's diarrhea - Answer✔gastroenteritis in travelers usually caused by bacteria endemic to
the local water; most common cause is enterotoxigenic E. coli. E. coli organisms are commonly
present in the water supplies of areas that lack adequate water purification. Infection is
common in persons traveling to some areas in Mexico and Latin America, the Middle East, Asia,
and Africa.
signs and symptoms if Traveler's diarrhea - Answer✔Nausea, vomiting, borborygmi ("blurp
blurp"), abdominal cramps, and diarrhea begin 12 to 72 hours after ingesting contaminated
food or water. Diarrhea is the watery type.
watery diarrhea - Answer✔Traveler's diarrhea
treatment of Traveler's diarrhea - Answer✔Antibiotics generally are not recommended for mild
diarrhea in patients without fever or blood in the stools as they may alter intestinal flora
adversely and promote resistant organisms.
For more severe diarrhea (three or more loose stools over 8 hours), antibiotics may be
indicated, especially if vomiting, abdominal cramps, fever, or bloody stools are present.
1|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED.
Escherichia coli 0157:H7 infection - Answer✔characterized by acute bloody diarrhea, which
may lead to the hemolytic-uremic syndrome; produce high levels of toxins that are
indistinguishable from the potent cytotoxin produced by Shigella dysenteriae. These Shiga
toxins are produced in the large intestine after ingestion of enterohemorrhagic E. coli.
The toxins cause direct mucosal damage and endothelial damage in the walls of blood vessels.
If absorbed into the bloodstream they can exert their toxic effects on other vascular endothelia
such as the kidney.
E. coli serotype 0157: H7 - Answer✔is the most common in North America;
hemorrhagic colitis occur after ingestion of undercooked beef (especially ground beef) or
unpasteurized milk
hemorrhagic E. coli - Answer✔Escherichia coli 0157:H7 infection
E. coli
ferments lactose - Answer✔Shigella doesn't
bloody diarrhea - Answer✔E. coli 0157: H7 infection
complications of E. coli 0157: H7 infection - Answer✔hemolytic-uremic syndrome (HUS), which
is characterized by the following:
1. hemolytic anemia
2. thrombocytopenia
3. acute renal failure
prophylaxis of E. coli 0157: H7 infection - Answer✔1. Proper disposal of the feces of infected
persons, good hygiene, and careful hand washing with soap help limit the spread of infection.
2. Pasteurization of milk and thorough cooking of beef prevent foodborne transmission.
3. Reporting outbreaks of bloody diarrhea to public health authorities can prevent additional
infections.
2|Page
