Which finding indicates complete airway obstruction?

• A. No breathing sounds
• B. Gurgling
• C. Expiratory wheeze
• D. Snoring

Answer: (A)

Complete airway obstruction is indicated by a complete lack of air movement through the airway. In practical terms, you would hear no breath sounds when listening with a stethoscope, and there may be minimal or no chest movement. This contrasts with partial obstruction, where some air still passes and you can hear noises such as a gurgle, a wheeze, or snoring. Gurgling suggests fluid or secretions with partial airflow; an expiratory wheeze points to narrowed airways but still some ventilation; snoring indicates upper airway partial blockage with some air flow remaining. So, the absence of any breath sounds signals that no air is getting through the airway, which is the hallmark of complete obstruction.