Which breathing technique is used to mobilize secretions by forceful exhalation?

• A. Huff coughing
• B. Pursed-lip breathing
• C. Diaphragmatic breathing
• D. Abdominal breathing

Answer: (A)

This question centers on a technique used to mobilize secretions through a forceful exhalation with the airway open. Huff coughing fits that description: the patient takes a deep breath and then exhales quickly with the mouth open, making a huff sound. This rapid, open-glottis exhalation creates a high-velocity airflow that helps loosen and push mucus from the smaller airways up toward the larger airways so it can be expelled. It’s especially helpful for thick secretions or obstruction because it moves secretions without the high-pressure buildup of a forceful closed-glottis cough, and it can be followed by a productive cough to clear the airways.

In contrast, pursed-lip breathing slows expiration to improve oxygenation and prevent airway collapse but isn’t about forcing secretions out. Diaphragmatic and abdominal breathing focus on using the diaphragm to improve ventilation and reduce work of breathing, not specifically on mucus clearance.