Airway & VentilationQuestion 10 of 100
Stridor, a high-pitched sound heard on inspiration, most commonly indicates:
a.Lower airway fluid
b.Upper airway obstruction or narrowing
c.Normal breathing
d.Pneumothorax
Explanation
Stridor is produced by turbulent airflow through a narrowed upper airway, such as from swelling or a foreign body. It signals a potentially serious airway threat requiring prompt attention.
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