Effects of viral respiratory infections on lung development and childhood asthma (original) (raw)

CME items

Question 1. A process in lung development that is ongoing in a 1-month-old infant is —

• A.
  development of the blood supply to interstitial tissue.
• B.
  formation of new alveoli.
• C.
  thickening of the alveolar walls.
• D.
  branching of the airways.

Question 2. In September, a 1-year-old infant develops a cold that is followed the next day by the appearance of wheezing and increased cough. The pathogen that is most likely to have caused this illness is —

• A.
  respiratory syncytial virus.
• B.
  influenza A.
• C.
  coronavirus.
• D.
  rhinovirus.

Question 3. Which of the following factors is an important regulator of vascular cell proliferation and differentiation?

• A.
  nitric oxide (NO)
• B.
  leukotriene B4 (LTB4)
• C.
  retinoids
• D.
  platelet-derived growth factor (PDGF)

Question 4. Which of the following factors is induced by viral infections and also plays an important role in the differentiation of airway epithelial cells?

• A.
  leukotriene D4 (LTD4)
• B.
  retinoids
• C.
  TGF-β
• D.
  IL-8

Instructions for category 1 Continuing Medical Education credit

The American Academy of Allergy, Asthma and Immunology is accredited as a provider of Continuing Medical Education (CME) by the Accreditation Council for Continuing Medical Education.

• Test ID no.: mai0056
• Contact hours: 1.0
• Expiration date: March 31, 2006

Category 1 credit can be earned by reading the text material and taking this CME examination online. For complete instructions, visit the Journal's Web site at www.mosby.com/jaci.

Learning objectives: “Effects of viral respiratory infections on lung development and childhood asthma”

• 1. To be able to discuss the stages of lung development and the timing of these events relative to birth and the first few months of life.
• 1. To name 2 factors that are induced by viral respiratory infections and also are known to regulate lung development.