Chapter 17- Obstructive Lung Disease Flashcards
What are the clinical features of COPD?
Chronic progressive dyspnea
What are the laboratory findings of COPD?
Decreased expiratory flow rates, hypoxia and hypercapnia in end-stage disease
What are the clinical features of emphysema?
Little or no sputum, end stage cachexia
What are the laboratory findings of emphysema?
Hyperinflation, increased compliance, low DLCO, rarely alpha1-antitrypsin deficiency
What are the clinical features of chronic bronchitis?
Sputum, history of smoking, industrial exposure
What are the laboratory findings of chronic bronchitis?
Nonspecific- rarely occurs in isolation without varying degree of emphysema
What are the clinical features of asthma?
Episodic dyspnea, cough, wheezing, with or without environmental triggers
What are the laboratory findings of asthma?
Airway hyperreactivity, response to bronchodilators
What are the clinical features of bronchiectasis?
Usually large volume of sputum
What are the laboratory findings of bronchiectasis?
Chest radiograph; dilated bronchi, thick walled, tram track shadows, obstruction with or without restriction on pulmonary function tests
What are the clinical features of immotile cilia syndrome?
Situs inversus, dextrocardia, sinusitis, infertility
What are the laboratory findings of immotile cilia syndrome?
Abnormal dynein in ciliated cells
What are the laboratory findings with hypogammaglobulinemia?
Decrease in one or more immunoglobulins
What are the clinical features of cystic fibrosis?
Sinusitis, bronchiectasis, meconium ileus, malabsorption, infertility
What are the laboratory findings in cystic fibrosis?
Increased sweat chloride, mutation in CFTR chloride channel, elevated fecal fat, abnormal nasal mucosal potentail difference
What are the three obstructive lung disorders that can make up COPD?
Chronic bronchitis
Emphysema
Chronic broncholitis
What is the algorithm for emergency department treatment of acute bronchospasm? What should you do if there is an inadequate response to this treatment?
Oxygen, inhaled B2 agonist, consider inhaled anticholinergic and oral or IV corticosteroids
If inadequate response- inhaled anticholinergics if not given already. If bronchospams persists admit to hopsital. If respiratory failure consider aminophylline, Heliox (hellium=oxygen), IV magnesium, endotracheal intubation and mechanical ventilation
What is the algorithm for emergency department treatment of acute bronchospasm? What should you do if there is a good response to this treatment?
Oxygen, inhaled B2 agonist, consider inhaled anticholinergic and oral or IV corticosteroids
Good response- discharge on inhaled B2 agonist +/- inhaled anticholinergic, corticosteroids x 5 days, arrange outpatient follow-up within 5 days
What is the algorithm for outpatient treatment of the chronic/stable bronchospasm in asthma?
Inhaled PRN short acting B2-Agonist
If continued sx add ICS
If continued sx increase dose of ICS add long-acting b2-agonist
If continued sx add leukotriene antagonist
if sx continued add oral corticosteroids
What is the algorithm for outpatient treatment of the chronic/stable bronchospasm in COPD?
Inhaled short acting b2-agonist and inhaled anticholinergic
If continued sx add trial of ICS
If continued sx add oral abx if chronic bronchitis is predominent component, and consider trial of theophylline
If continued sx trial of oral corticosteroids.
What are the organ systems involved in cystic fibrosis?
Pulmonary
Pancrease
Genitourinary
Gastrointestinal
What is the pulmonary involvement in cystic fibrosis?
Cough and sputum production Recurrent pneumonias Bronchial hyperreactivity Hemoptysis Pneumothorax Significant digital clubbing Cor pulmonale
What is the upper respiratory tract involvement in cystic fibrosis?
Nasal polyps
Chronic sinusitis
What is the gastrointestinal involvement in cystic fibrosis?
Meconium ileus in the neonate Distal intestinal obstruction Rectal prolapse Hernias Exocrine pancreatic dysfunction causing steatorrhea, malnutrition, and vitamin deficiency Acute pancreatitis (rare) Diabetes mellitus Cirrhosis and portal HTN Salivary gland inflammation Cholelithiasis