Which of the following is a common sign or symptom of an asthma attack?

Rapid, shallow breathing is a common sign or symptom of an asthma attack because during such an event, the airways narrow and become inflamed, causing difficulty in breathing. This leads to an increased respiratory rate as the body attempts to get enough oxygen. This rapid breathing can sometimes appear shallow as the person struggles to breathe effectively.

In contrast, while chest pain, excessive sweating, and confused behavior might occur in various medical emergencies, they are not typical indicators of an asthma attack. Chest pain, for example, is more often associated with cardiovascular issues. Excessive sweating might indicate stress or a different kind of respiratory problem, while confused behavior could suggest a lack of oxygen or other serious conditions but not specifically point to an asthma attack. Understanding the typical signs of an asthma attack, such as the rapid, shallow breathing, helps in recognizing and responding appropriately in emergency situations.