Which of the following is NOT a symptom of asthma?

Cyanosis is indeed not a typical symptom of asthma, although it can occur in more severe cases when a patient is experiencing significant respiratory distress. In the context of asthma, the main symptoms arise from the narrowing of the airways, which is attributed to inflammation, bronchospasm, and increased mucus production.

Wheezing during inspiration is definitely a characteristic symptom of asthma, as the obstructed airways lead to a high-pitched whistling sound when breathing, particularly noticeable during exhalation, but it can also be heard during inspiration. Dyspnea, or shortness of breath, is another common symptom that reflects the difficulty a patient has when trying to breathe due to airway constriction. Bronchospasm refers to the tightening of the smooth muscles surrounding the airways, which is a hallmark of asthma attacks and contributes directly to the airway obstruction.

Therefore, while cyanosis can indicate a lack of oxygen and is a sign of more severe respiratory issues, it is not one of the primary symptoms associated with asthma itself.