Pulmonary Diseases Flashcards
(218 cards)
Chronic Bronchitis: Epi
Smokers
Chronic Bronchitis: Symptoms
Wheeze, productive cough, dyspnea (especially exertional), muscular wasting
Chronic Bronchitis: Signs/Dx Criteria
Airway edema + fibrosis, cyanosis, hyperinflation, ↓breath sounds, black lung fields on CT, reduced FEV1/FVC ratio (<70% exp.), impaired gas exchange (V/Q mismatch), ↑ dead space, hypoventilation
Chronic Bronchitis: Type
Obstructive (COPD)
Chronic Bronchitis: Pathophysiology
Hypertrophy of mucus glands + goblet cells in bronchioles, basement memb thickening
Chronic Bronchitis: Etiologies
Smoking exacerbates
Chronic Bronchitis: Treatment
Stage I: risk factor reduction, flu/pneumo vaccine, SABA. Stage II: LABA, rehab. Stage III: inhaled corticosteroids. Stage IV: long-term O2 therapy, surgery. SMOKING CESSATION!
Emphysema (Centriacinar): Epi
Smokers
Emphysema (Centriacinar): Symptoms
Wheeze, productive cough, dyspnea (especially exertional), muscular wasting
Emphysema (Centriacinar): Signs/Dx Criteria
Airway edema + fibrosis, cyanosis, hyperinflation, ↓breath sounds, black lung fields on CT, reduced FEV1/FVC ratio (<70% exp.), impaired gas exchange (V/Q mismatch), ↑ dead space, hypoventilation
Emphysema (Centriacinar): Type
Obstructive (COPD)
Emphysema (Centriacinar): Pathophysiology
Destruction of acinar walls by ↑elastase activity → loss of radial traction, increased lung compliance
Emphysema (Centriacinar): Etiologies
Smoking, mostly affects upper lobe, spares alveoli
Emphysema (Centriacinar): Treatment
Stage I: risk factor reduction, flu/pneumo vaccine, SABA. Stage II: LABA, rehab. Stage III: inhaled corticosteroids. Stage IV: long-term O2 therapy, surgery. SMOKING CESSATION!
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Epi
2% of COPD pts
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Symptoms
Wheeze, productive cough, dyspnea (especially exertional), muscular wasting
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Signs/Dx Criteria
Airway edema + fibrosis, cyanosis, hyperinflation, ↓breath sounds, black lung fields on CT, reduced FEV1/FVC ratio (<70% exp.), impaired gas exchange (V/Q mismatch), ↑ dead space, hypoventilation
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Type
Obstructive (COPD)
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Pathophysiology
Congenital cause of COPD; autosomal co-dominant, mutation in SERPINA1 gene leads to excess protease activity, increased lung compliance
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Etiologies
Mostly affects lower lobes
α1-Antitrypsin (AAT) Deficiency (aka Panacinar Emphysema): Treatment
Same + IV pooled AAT
Bronchiectasis: Symptoms
Hemoptysis, productive cough
Bronchiectasis: Signs/Dx Criteria
Soap bubble appearance on CXR, PMNs and mucus in airways on histology
Bronchiectasis: Type
Obstructive (COPD)