How is stridor defined in clinical terms?

Stridor is characterized as a high-pitched or crowing inspiratory sound that occurs due to turbulent airflow in the upper airway, typically as a result of partial obstruction. This sound is often associated with conditions that narrow the airway, such as croup, laryngeal edema, or foreign body aspiration. Clinically, stridor is a significant finding as it can indicate respiratory distress and the need for immediate medical intervention. The distinguishing feature of stridor is its high pitch, which sets it apart from other respiratory sounds like wheezes or crackles.

Other sound descriptions like low-pitched sounds, coughing sounds, and gurgling sounds do not accurately convey the specific nature of stridor, which emphasizes the urgency of the situation when it is present. Understanding stridor is essential for healthcare providers to assess and respond to potential airway emergencies effectively.