As a minimum, patients with persistent asthma should have a specialist review every 3–6 months. Patients with severe or biologic-treated asthma are typically seen every 1–3 months. Annual spirometry is recommended for all patients. Patients should also seek early review whenever their symptoms worsen — rather than waiting for their next scheduled appointment. At Pulmovista Clinics, urgent review appointments are available for patients with deteriorating asthma.