Asthma in Adults: Diagnosis, Treatment, and Telehealth Support

Asthma affects approximately 3.8 million Canadians. While often thought of as a childhood condition, many adults are newly diagnosed or find their asthma worsening over time. Adult asthma symptoms include wheezing (a whistling sound when breathing), shortness of breath, chest tightness, chronic cough (particularly at night or early morning), and symptoms triggered by exercise, cold air, smoke, or allergens. Diagnosis typically involves spirometry (a breathing test measuring lung function), peak flow monitoring, and response to bronchodilator medication. Treatment follows a stepwise approach outlined by the Canadian Thoracic Society. First-line: low-dose inhaled corticosteroids (ICS) such as fluticasone or budesonide. Second-line: ICS combined with a long-acting beta-agonist (LABA). Rescue: short-acting beta-agonist (SABA) such as salbutamol for acute symptoms. Proper inhaler technique is critical - studies show that up to 90% of patients use inhalers incorrectly, reducing medication effectiveness. Ask your pharmacist or physician for a technique review. An asthma action plan - a written document outlining daily management and steps for worsening symptoms - should be developed with your healthcare provider. Telehealth follow-ups are effective for asthma management and medication adjustments. *This article is for informational purposes only.*

This article is for informational purposes only and does not constitute medical advice. Content reviewed by licensed Canadian physicians. Last updated February 2026.