What term describes a high-pitched sound associated with upper airway obstruction?

The term that describes a high-pitched sound associated with upper airway obstruction is known as stridor. Stridor is often indicative of a narrowing or blockage in the upper airway, which can occur due to various conditions such as anaphylaxis, croup, or foreign body aspiration. This sound is typically heard during inhalation and is a critical indicator that the patient may be experiencing significant respiratory distress. Recognizing stridor is crucial for EMTs, as it signals the need for immediate assessment and intervention to secure the airway.

In contrast, croup primarily refers to a syndrome characterized by a barking cough and is commonly associated with viral infections in children, often leading to stridor as a symptom rather than being the term for the sound itself. Wheezing is a high-pitched sound typically associated with lower airway obstruction, often caused by conditions like asthma or bronchitis, and is heard during expiration. Rhonchi are associated with larger airway obstructions, producing a low-pitched, snoring sound. Understanding these distinctions helps in accurate assessment and prioritizing treatment in emergency situations.