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ch 20
pratice test
| Question | Answer |
|---|---|
| Defenses of the GI tract against pathogens include | All of the choices are correct. |
| Which organ of the GI tract has a large commensal population of microorganisms? | Large intestine |
| The most common infectious disease in humans is | dental caries |
| Oral biota on the tooth surface | All of the choices are correct. |
| The causative organism for mumps is | Paramyxovirus |
| Orchitis and epididymitis are 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 Helicobacter pylori? | Produces enteroxin that causes diarrhea |
| Which of the following is mismatched? | All of the choices are correct. |
| Salmonella are | motile |
| Salmonelloses are | All of the choices are correct. |
| Which is incorrect about shigellosis? | It frequently involves septicemia |
| Shigella species have the following characteristics except | produce urease and hydrogen sulfide |
| E. coli O157:H7 characteristics include all the following except it __ | only causes occupational illness in people who work with animals |
| Escherichia coli infections ______ | All of the choices are correct. |
| The most common bacterial cause of diarrhea in the United States is | Campylobacter |
| All of the following pertain to Clostridium difficile 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 |
| Cholera symptoms include | 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 disease have been associated with fecal-contaminated drinking water? | Cryptosporidiosis |
| Signs and symptoms of cryptosporidiosis include | headache, sweats, vomiting, severe 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 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 |
| Entamoeba histolytica is acquired by | All of the choices are correct. |
| All of the following can be transmitted by drinking contaminated water except | malaria |
| Inflammation of the liver with necrosis of the hepatocytes and swelling due to a mononuclear response is a disease called | hepatitis |
| Hepatitis B virus | All of the choices are correct. |
| Hepatitis B infection | increases risk for hepatocellular cancer |
| Which is incorrect about hepatitis A infection? | Predisposes a person for liver cancer |
| The most common cause of liver cancer in the United States is | HBV |
| Parasitic helminths have the following characteristics except | do not exhibit drug resistance |
| All of the following pertain to tapeworms except | eosinophilia does not occur |
| General symptoms of helminth infection include all of the following except | intense abdominal pain |
| Trichinosis includes all the following except | All of the choices are correct. |
| Which of the following helminths is paired with correct characteristics of its pathogenesis? | Strongyloides stercoralis - life and transmission cycle B |
| All of the following are components of the digestive tract except the | kidneys |
| Which of the following is not considered an accessory organ to the gastrointestinal tract? | Stomach |
| Certain molecules contribute to the first line of defense in the gastrointestinal tract, including | lysozyme and lactoferrin |
| Which of the following statements is incorrect regarding the microbiome of the gastrointestinal tract? | The gut microbiome, while playing an important role in gastrointestinal function, does not influence other systems in the body. |
| Which of the following is incorrect regarding the microbiome of the stomach? | The high acid content of the stomach prevents any microbes from colonizing the organ. |
| Choose the best description of the normal microbiota of the oral cavity. | Very large, diverse population that includes bacteria, fungi, and protozoans |
| Choose the statement that describes the normal biota of the stomach. | There are over 100 different species of microorganisms living in the stomach. |
| Choose the statement that describes rotavirus infections to test your understanding of GI tract diseases. | The virus has an unusual double-stranded RNA genome. |
| The virus has an unusual double-stranded RNA genome. | Dietary restriction of carbohydrates |
| an increase in certain granular leukocytes, is a hallmark of helminthic infections. | Eosinophilia |
| Choose the phrase that does not describe helminths. | Possess a complex neurological system |
Created by:
janel2010