Which of the following is a sign or symptom of bronchoconstriction?

Wheezing is characterized by a high-pitched whistling sound made during breathing, particularly during exhalation, and is a direct indication of airway narrowing, which occurs in bronchoconstriction. This constriction can be caused by various factors including asthma, allergic reactions, or respiratory infections, leading to difficulty in airflow. Wheezing is commonly heard in patients with conditions that result in bronchospasm, making it a classic sign of bronchoconstriction.

While fever, nausea, and chest pain can be associated with various respiratory conditions or illnesses, they are not specific indicators of bronchoconstriction. Fever may suggest infection or inflammation, nausea can be linked to a range of digestive or systemic issues, and chest pain may have multiple causes, including cardiac problems or musculoskeletal issues, none of which directly relate to the bronchial narrowing characteristic of bronchoconstriction. Therefore, among the options provided, wheezing is the most relevant sign of this condition.