Bronchiectasis

Causes

Appropriate Tests

 

In acute exacerbations: MCS sputum (occasionally bronchial brushings, lavage). Staphylococcus aureus and Pseudomonas aeruginosa are particularly important pathogens in this setting. Blood culture in severely ill patients with radiological evidence of pneumonia.

Cystic fibrosis

 

Post-infection eg,

  • Staphylococcal pneumonia
  • Pertussis
  • Tuberculosis
  • Measles

 

Local obstruction eg,

 

  • Foreign body

 

  • Bronchial tumour

Sputum cytology, bronchial brush, wash, lesion biopsy.

See Lung lesion

Immunodeficiency

Immunoglobulins G, A, M

Immotile cilia syndrome eg,

  • Kartagener's syndrome

Tests of cilial function - consult pathologist. Nasal biopsy, including Electron microscopy (EM) for assessment of ciliary morphology.