Physical Examination Findings in Bronchiectasis
The most characteristic physical examination finding in bronchiectasis is persistent crackles on chest auscultation, typically bi-basal in distribution 1, 2. These crackles are the dominant and most reliable physical sign you should expect to find.
Key Physical Examination Findings
Primary Finding
- Crackles (rales): Present in the majority of patients, characteristically:
Additional Respiratory Findings
While crackles dominate the physical examination, you may also encounter:
- Wheezing: Present in some patients, particularly those with concurrent airflow obstruction or bronchial hyperreactivity
- Prolonged expiratory phase: Reflecting the moderate airflow obstruction commonly seen (average FEV1 around 76% predicted) 1
- Digital clubbing: May be present in advanced or severe cases, though not universally found
Associated Clinical Features
Beyond the chest examination, look for:
- Signs of chronic rhinosinusitis: Present in approximately 70% of patients, including nasal congestion, post-nasal drip 1
- General appearance: Patients may appear fatigued (reported in 74% of cases) 1
Important Clinical Context
The physical examination in bronchiectasis is often surprisingly unremarkable given the extent of radiological disease 1. This is a critical pitfall—you cannot rule out bronchiectasis based on a normal or near-normal chest examination. The guidelines emphasize that diagnosis requires CT confirmation, not physical findings 3.
When to Suspect Bronchiectasis Clinically
The physical examination should prompt investigation for bronchiectasis when you find:
- Persistent bi-basal crackles in a patient with chronic productive cough (present in 98% of diagnosed patients) 1
- Crackles in patients with recurrent chest infections
- Respiratory findings in patients with known risk factors (rheumatoid arthritis, COPD with frequent exacerbations, inflammatory bowel disease) 3
Diagnostic Limitations
Physical examination alone is insufficient for diagnosis. The 2019 BTS guidelines explicitly state that thin-section CT scanning is required to confirm bronchiectasis when clinically suspected 3. Most patients have had chronic symptoms for over 30 years before diagnosis, and over 80% had respiratory symptoms from childhood, indicating that physical findings may be longstanding and subtle 1.
The absence of crackles does not exclude bronchiectasis, and their presence is non-specific—they can occur in many other respiratory conditions. Always correlate physical findings with clinical history (chronic productive cough, recurrent infections) and proceed to definitive imaging when suspicion exists.