Cyanosis is a late and serious sign of airway obstruction, indicating significant oxygen deprivation (hypoxemia). Earlier signs may include coughing, stridor, and tachypnea as the patient attempts to maintain airway patency and oxygenation. The appearance of cyanosis suggests that the obstruction has become severe and requires immediate intervention.
Which of the following is a late sign of airway obstruction? Cyanosis, Cough, Stridor, Tachypnea
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