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by Wood D

(Collapsed Lung)



Atelectasis is caused by a:
  • Blockage of the airway
  • Reduced amount of surfactant, a liquid that keeps the lungs expanded
Blockage may be caused by:
Reduced amounts of surfactant may be caused by:
  • Lung immaturity in premature babies
  • Fluid accumulation
  • Failure to take deep breaths
  • Not coughing, which keeps the airway clear

Risk Factors

Factors that may increase your chance for atelectasis include:


To help reduce your chance of atelectasis, take these steps.


American Lung Association

National Heart Lung and Blood Institute



The Canadian Lung Association

Health Canada



Explore atelectasis. National Heart, Lung, and Blood Institute website. Available at: . Updated January 13, 2012. Accessed September 19, 2013.

Behrman RE, et al. Nelson Textbook of Pediatrics. 18th ed. Philadelphia: Saunders; 2007.

Goldman L, Ausiello D, eds. Cecil Textbook of Internal Medicine. 23rd ed. Philadelphia: Saunders; 2008.

Mason, RJ et al. Murray & Nadel’s Textbook of Respiratory Medicine. 4th ed. Philadelphia: Saunders; 2007.

Spontaneous pneumothorax in adults. EBSCO DynaMed website. Available at: . Updated June 28, 2013. Accessed September 19, 2013.


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