Which of the following is a key sign of an asthma attack?

Wheezing and difficulty breathing are hallmark signs of an asthma attack. During an asthma attack, the airways become inflamed and constricted, leading to reduced airflow and making it difficult for the person to breathe. Wheezing is characterized by a high-pitched whistling sound that occurs when the air is forced through narrowed airways. Difficulty breathing, or shortness of breath, is also a direct consequence of this airway obstruction.

The presence of these two symptoms indicates a significant asthma exacerbation, requiring immediate attention and intervention. Coughing without breath, while it may occur in some individuals with asthma, does not solely reflect an asthma attack since it can arise from various other conditions. Persistent headache can also be associated with numerous issues but is not a specific indicator of an asthma attack. Similarly, chest pain may occur in many situations, including anxiety or cardiac issues, and is not exclusively tied to asthma. The combination of wheezing and difficulty breathing distinctly points to an acute asthma episode, making it the defining sign in this context.