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Respiratory Diseases (COPD (Chronic Bronchitis- Sputum production for at…
Respiratory Diseases
COPD
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Investigation: FEV1 <80%, /FVC <0.7. hyperinflation
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Bronchiectasis
S. pneumoniae, H. inf, s. aureus, P. aeruginosa (CF)
Clubbing, crackles, cough, purulent sputum. CXR: Tram track opacities in bronchi
Permanent airway dilation via chronic inflammation. Inability to clear secretions. Recurrent infections.
Vicious cycle of bronchial damage, bronchial dilation, impaired clearance of secretions, recurrent infection,
Pneumonia
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Inflammation of lung, consolidation on CXR.
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Asthma
Mucus plugging, inflammation, bronchial contraction
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Chronic, inflammatory with reversible airway obstruction
Eosinophils producing leukotrienes -> inflammation, bronchoconstriction, mucus production
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