• See Also
  1. Sputum Collection
  2. Sputum Microscopy
  • Causes
  • Estimate daily volume of Sputum
  1. Small amounts
    1. Lung Abscess
    2. Pneumonia
    3. Tuberculosis
  2. Copious amounts (>200 cc/day)
    1. Bronchiectasis
    2. Bronchopleural Fistula
  • Causes
  • Sputum Color
  1. Bloody Sputum (Hemoptysis)
  2. Rusty sputum (Prune-juice)
    1. Pneumococcal Pneumonia
  3. Purulent Sputum (yellow, green, dirty-gray)
    1. Color alone does not distinguish Bacterial Infection
  1. Frothy Sputum (air bubbles, Hemoglobin)
    1. Pulmonary Edema
  2. Foamy, clear material
    1. Saliva
    2. Nasal secretions
  1. Bloody Gelatinous Sputum (Currant Jelly Sputum)
    1. KlebsiellaPneumonia
    2. Pneumococcal Pneumonia
  2. Stringy Mucoid Sputum (may also appear frothy)
    1. Follows Asthma Exacerbation
  3. Cloudy, mucoid Sputum
    1. Chronic Bronchitis
  4. Three layered appearance (stagnant, Purulent Sputum)
    1. Bronchiectasis
    2. Lung Abscess
  • Causes
  • Sputum with Feculent Odor
  1. Anaerobic infection
  2. Bronchiectasis