How effective is spirometry for bronchiectasis?

Bronchiectasis can change the way air moves through the lungs. Spirometry records measures such as exhaled volume and flow, helping your clinician describe obstruction or restriction and establish a baseline for follow-up. The result may help explain breathlessness or reduced exercise tolerance.

Spirometry cannot show widened airways, mucus plugging or infection. Assessment commonly also considers your cough, sputum, chest infections, examination and chest imaging. A result may be near the expected range even when bronchiectasis is present, so it should be read with the rest of your clinical picture.

Bring a list of inhalers and other medicines, and tell the testing team about a recent chest infection, coughing blood, chest pain or difficulty giving a full effort. Follow instructions about medicines before the appointment rather than stopping anything without advice.

The technician will coach you through forceful breaths and may repeat the manoeuvre to check consistency. Keep a record of changes in cough, sputum colour, fever and exercise ability, because these details help place the lung-function result in context.

Contact your care team if breathlessness or daily sputum is worsening, infections are becoming more frequent, or you are losing the ability to do usual activities. Seek urgent care for significant coughing of blood, severe breathlessness, chest pain, blue lips, confusion or sudden deterioration.

Ask which part of lung function is affected, whether your result will be used as a baseline, what imaging or sputum assessment is needed, and how changes should be monitored over time.