Indirect Transfer of Infectious Agents Quiz
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Questions and Answers

Which factor contributes to the risk of infection in hospitalized patients?

  • Impaired immunity (correct)
  • Consumption of vitamins
  • Exposure to sunlight
  • Regular exercise routine

What is an example of a potential entry point for infection in hospital patients?

  • Regular handwashing
  • Initial insertion of a medical device (correct)
  • Consuming a healthy diet
  • Exposure to fresh air

What is cited as an additional risk factor for infection in hospital patients?

  • Trauma including surgery (correct)
  • Adequate sleep patterns
  • Regular physical therapy sessions
  • Sufficient hydration levels

Which type of infection is associated with MRSA auto-infection?

<p>Wound infection (B)</p> Signup and view all the answers

What is a common source of cross-infection in hospitals?

<p>Contaminated environment (dust, air conditioning) (D)</p> Signup and view all the answers

What is the main method of transmission for pathogens like MRSA and foodborne infections?

<p>Indirect transmission via contaminated objects or people (D)</p> Signup and view all the answers

Which type of pathogens can remain suspended in the air for long periods and access the lower respiratory tract?

<p>Airborne droplet nuclei (B)</p> Signup and view all the answers

What is a characteristic of pathogens like M.tuberculosis and measles regarding their transmission?

<p>They can survive for long periods in air as small particles (D)</p> Signup and view all the answers

Which statement best describes the traditional medical distinction that is now being replaced by a more scientific classification?

<p>Classifying pathogens based on their mode of transmission (C)</p> Signup and view all the answers

What is a characteristic feature of droplet transmission from an infected person?

<p>Involves larger particles produced during talking or coughing (A)</p> Signup and view all the answers

Where are pathogens like S.aureus primarily sourced from when leading to wound infections?

<p>Human nose and skin (D)</p> Signup and view all the answers

What is one of the impacts of Healthcare Associated Infections (HAI) mentioned in the text?

<p>Increased pain and distress (A)</p> Signup and view all the answers

Why are point prevalence surveys done every few years?

<p>Because they are expensive and complex (C)</p> Signup and view all the answers

Which bacteria are specifically mentioned in the text as 'alert organisms' likely acquired in the hospital?

<p>Meticillin-resistant S. aureus (MRSA) (A)</p> Signup and view all the answers

Why is surveillance of Healthcare infection important in hospitals?

<p>To monitor changes over time and allow comparisons (B)</p> Signup and view all the answers

What is one role of the Infection Control Service mentioned in the text?

<p>Providing education to clinical staff (D)</p> Signup and view all the answers

Why do some bacteria infect patients in hospitals who would not normally be infected by them?

<p>Due to the misuse of antibiotics (A)</p> Signup and view all the answers

Which of the following is NOT a characteristic of Enterobacterales/Enterobacteriaceae?

<p>They are Gram-positive bacteria (D)</p> Signup and view all the answers

According to the 2017 Europe-wide prevalence survey in Ireland, what was the overall rate of healthcare-associated infections (HCAI)?

<p>6.1% (C)</p> Signup and view all the answers

Which of the following was NOT one of the leading healthcare-associated infections (HCAI) identified in the 2017 survey?

<p>Meningitis (A)</p> Signup and view all the answers

According to the 2017 survey, what percentage of patients with healthcare-associated infections had an infection caused by Clostridium difficile?

<p>4.4% (A)</p> Signup and view all the answers

Which of the following organisms was the most common cause of healthcare-associated infections, according to the 2017 survey?

<p>Escherichia coli (A)</p> Signup and view all the answers

What is the primary cause of diarrhea following antibiotic therapy, according to the text?

<p>Clostridium difficile (C)</p> Signup and view all the answers

According to the passage, which type of transmission is associated with large particles that settle on the ground within 1 meter and less than 5 minutes?

<p>Droplet transmission (D)</p> Signup and view all the answers

What is the key difference between droplet and aerosol/airborne transmission according to the passage?

<p>Droplet transmission involves particles that contaminate the immediate environment, while aerosol/airborne transmission involves particles that can travel long distances. (C)</p> Signup and view all the answers

According to the passage, what is the recommended distance to maintain to prevent droplet transmission?

<p>2 meters (B)</p> Signup and view all the answers

Which of the following is NOT mentioned in the passage as a countermeasure for droplet transmission?

<p>Wearing a full-body hazmat suit (A)</p> Signup and view all the answers

Based on the passage, which of the following statements about respiratory particles is true?

<p>Respiratory particles can travel more than 2 meters from the source according to MIT Physics lab experiments. (A)</p> Signup and view all the answers

What is the significance of the statement in the passage about 1000 frames per second images of a sneeze?

<p>It suggests that high-speed imaging is necessary to study the dynamics of respiratory particle emission. (A)</p> Signup and view all the answers

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