Chapter 22

Defenses of the GI tract against pathogens include
All of these choices are correct
The mutinous glycoprotein covering teeth that streptococci attach to is called the
Pellicle
Which organ of the Gi tract has a large commensual population of microorganisms?
Pellicle
The most common infectious disease in humans is
Dental caries
The main causes of dental caries seem to be
Both B and C are correct
Oral flora on the tooth surface
use fimbriae and slime layers to adhere
Gingivitis
All choices are correct
All of the following are true of acute necrotizing ulcerative gingivitis (AUNG) except:
Very communicable
The causative organism for mumps is
Paramyxovirus
The virulence factor for mumps is
Spike-induced syncytium
Orchitis and epididymitis is seen in young adult males as a complication of
Mumps
Helicobacter pylori causes
All of the choices are correct
Which is not a characteristic of Heliocobacter pylori?
Produces enteroxin that causes diarrhea
Which of the following is mismatched?
All of the choices are correct
Salmonella are
Motile
Typhoid fever gas the following characteristics except:
Spread by ingestion of food contaminated with animal feces
Salmonelloses are
All of the choices are correct
Salmonella typhi
All of the choices are correct
Which is incorrect about shigellosis?
Frquently involve septicemia
Shigella species have the following characteristics except?
They produce urease and hydrogen sulfide
E. coli O157:H7 characteristics include all of the following except it
Only causes occupational illness in people who work with animals
Which of the following is not a virulence factor of E.Coli O157:H7?
Secretes shiga exotoxin from E.coli chromosome
Which of the following is not true of Enterotoxigenic E. col (ETEC)?
A high fever is present
Which of the following is not truer of Enterovasive E.Coli (EIEC)?
Produces shiga toxin
Escherichia coli infectiond
All of the choices are correct
All of the following are characteristics of Campylobacter jejune except?
Infects the stomach
The most common bacterial cause of diarrhea in the United States is >
Campylobacter
Campylobacter infection has all of the following characteristics except?
Is caused by a shiva toxin
Which is true of Yersinia enterocolitica and Yersinia pseudotuberculosis?
Intense pain caused by inflammation of the ilium and mesenteric lymph nodes
Production of enterotoxin is a characteristic of
Clostridium difficile
All of the following pertain to Clostridium difficult infection except it is?
Due to ingestion of contaminated, improperly stored, cooked meats and gravies
Which is not true of Clostridium difficile?
Produces “rice-water” stools
The virulence of Vibrio cholerae is due to its
Enterotoxin
Cholera symptoms are
All of the choices are correct
The most immediate and important treatment needed to prevent death in Cholera victims is
Water and electrolyte replacement
“Rice water stools” are associated with disease caused by which organism?
Vibrio cholerae
Outbreaks of which apicomplexan disease have been associated with fecal-contaminated drinking water?
Cryptosporidiosis
Symptoms of cryptosporidiosis include
HEadache, sweats, vomiting, servere abdominal cramps and diarrhea
The primary viral cause of chronic diarrhea, globally is
Rotavirus
Which of the following is not a normal causative agent of acute diarrhea with vomiting (food poisoning)?
Clostridium difficile
A common food intoxication is caused by enterotoxin-producing strains of
Staphylococcus aureus
Which is incorrect about Staphylococcus aureus food intoxication?
Ingestion of the pathogen allows it to multiply and damage the GI Tract lining
Outbreaks of which apicomplexan disease have been associated with fecal-contaminated imported raspberries and also fresh greens and drinking water
Cyclosporiasis
Entamoeba histolytica is acquired by
All of the choices are correct
All of the following can be trasmisitted by drinking contaminated water except
MALARIA
Giardiasis involved
Symptoms of abdominal pain, flatulence and diarrhea
Inflammation of the liver with necrosis of the hepatocyctes and swelling due to mononuclear response is a disease called
Hepatitis
Hepatitis B virus
All of the choices are correct
Hepatitis B infection
Increases risk for hepatocelluar cancer
Which is incorrect about Hepatitis A infection?
Predisposes a person for liver cancer
Which is mismatched?
Hepatitis D virus- Defective RNA virus that connects with HAV
The most common cause of liver cancer in the US is
HCV
Parasitic helminthes have the following characteristics except
Have larval forms that do not affect humans
Asacaris lumbricoides
All of the choices are correct
Enterobius vermicularis is
an intestinal worm that easily contaminates fibers and fomites
All of the following pertain to tapeworms except
Eosinophilia does not occur
General symptoms of helminth infection includes all of the following except
Intense abdominal pain
Trichinosis includes all of the following except
All of the choices are correct
Liver flukes live in all the following areas except
SMALL INTESTINE
Which of the following is not true of schistomiasis?
Worms can invade the brain
Which of the following infections involves intermediate development in snails and fresh water fish?
Both A & B
Which of the following helminths is paired with a correct characteristic(s) of its pathogenesis?
Strongyloides stercoralis- life and transmission cycle B
Tagged In :

Get help with your homework


image
Haven't found the Essay You Want? Get your custom essay sample For Only $13.90/page

Sarah from studyhippoHi there, would you like to get such a paper? How about receiving a customized one?

Check it out