What term describes difficult or labored breathing?

• A. Dyspnea
• B. Tachypnea
• C. Bradypnea
• D. Hyperventilation

Answer: (A)

Difficult or labored breathing is dyspnea. It’s the patient’s subjective sensation of breathlessness or air hunger, describing how hard it feels to breathe and how uncomfortable it is, which can occur at rest or with exertion and may be accompanied by observable signs of effort such as use of accessory muscles or nasal flaring.

Tachypnea, by contrast, refers to an abnormally rapid breathing rate but does not specify the effort or the sensation of breathing difficulty. Bradypnea is an abnormally slow breathing rate. Hyperventilation involves increased ventilation that often exceeds the body's metabolic needs, typically with rapid and deep breaths, but again focuses on rate and depth rather than the experience of breathing difficulty.