What is NOT a characteristic of bronchospasm?

Improved airflow is indeed not a characteristic of bronchospasm. In fact, bronchospasm is a condition in which the muscles surrounding the bronchi constrict, leading to narrowed airways. This constriction typically results in difficulty with expiration as the patient struggles to push air out of the lungs.

Additionally, wheezing sounds often accompany bronchospasm due to the turbulent airflow through the narrowed passages. Patients may also experience chest tightness, which is a common symptom associated with the sensation of constricted airways. Therefore, improved airflow contradicts the very definition of bronchospasm, where airflow is compromised rather than enhanced.