What are the signs and symptoms of lower respiratory tract injury caused by smoke inhalation?

Updated: Oct 15, 2021
  • Author: Keith A Lafferty, MD; Chief Editor: Joe Alcock, MD, MS  more...
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Symptoms of lower respiratory tract injury include the following:

  • Tachypnea

  • Dyspnea

  • Cough

  • Decreased breath sounds

  • Wheezing

  • Rales

  • Rhonchi

  • Retractions

Cyanosis may be present. However, cyanosis is an unreliable indicator of hypoxia because neither carbon monoxide nor CN cause cyanosis.

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