Upper Respiratory Tract Infections: Learning Objectives

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Questions and Answers

What is the receptor used by Rhinovirus for attachment?

  • Interleukin
  • PMN leukocytes
  • IL-8
  • ICAM-1 (correct)

Which symptom may intensify over 2-3 days in a common cold?

  • Nasal discharge (correct)
  • Loss of sense of smell and taste
  • Hoarseness
  • Facial and ear pressure

What is the potent chemoattractant released by infected cells?

  • IL-8 (correct)
  • ICAM-1
  • PMN leukocytes
  • Rhinovirus

What symptom is a common and bothersome initial symptom of a common cold?

<p>Sore throat or throat irritation (A)</p> Signup and view all the answers

What is an unusual symptom in a common cold, but when present, is typically low grade?

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

Which cell receptor does Rhinovirus utilize for attachment?

<p>ICAM-1 (D)</p> Signup and view all the answers

What is the percentage of infected individuals experiencing hoarseness in a common cold?

<p>20% (B)</p> Signup and view all the answers

Which cytokine acts as a potent chemoattractant for polymorphonuclear leukocytes released by infected cells?

<p>Interleukin-8 (IL-8) (A)</p> Signup and view all the answers

What is a common initial symptom of a common cold that may be bothersome?

<p>Sore throat or throat irritation (D)</p> Signup and view all the answers

Which symptom, when present in a common cold, is typically low grade and considered unusual?

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

Which symptom, when present in a common cold, is typically low grade and considered unusual?

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

What is the percentage of infected individuals experiencing hoarseness in a common cold?

<p>20% (C)</p> Signup and view all the answers

Which cytokine acts as a potent chemoattractant for polymorphonuclear leukocytes released by infected cells?

<p>Interleukin-8 (IL-8) (B)</p> Signup and view all the answers

What symptom is a common and bothersome initial symptom of a common cold?

<p>Nasal dryness or irritation (B)</p> Signup and view all the answers

What is the receptor used by Rhinovirus for attachment?

<p>ICAM-1 (D)</p> Signup and view all the answers

Flashcards

Rhinovirus attachment receptor

ICAM-1

Common cold nasal symptom

Nasal discharge

Chemoattractant cytokine

IL-8

Initial cold symptom

Sore throat

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Unusual cold symptom

Low grade fever

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Hoarseness percentage

20%

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IL-8 function

Attracts immune cells

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Another initial cold symptom

Sore throat or throat irritation

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Cold symptom (unusual)

Fever

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Another initial cold symptom

Nasal dryness or irritation

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Rhinovirus receptor

ICAM-1

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Cold symptom percentage

20%

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IL-8 role

Attracts immune cells

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Frequent cold symptom

Nasal discharge

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