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47 Cards in this Set

  • Front
  • Back
What is pathology of centrilobular emphysema? Who gets it? where in lungs?
i)destroys RB (prox acini) w/little change in distal acini. ii)smokers iii)upper lobe
what is path of panlobular emphysema? Who gets it? Where in lungs?
i)prox and distal acini ii)a1AT def iii)lung bases
What is defn of chronic bronchitis? Of emphysema?
i)CB: clinical dx; chronic cough w/sputum for 3 mo/year for 2 years. ii)pathologic dx; permanent enlargement distal to TB due to destruction of alveolar walls
what is a risk factor for COPD besides smoking, A1AT, and environment
asthma
What is pathogenesis of CB?
i)excess mucus production narrowing airways; inflamm and scarred airways, enlarged mucus glands, smooth m hyperplasia
What is pathogenesis of emphysema? How does smoking affect it?
i)alveolar walls destroyed b/c excess elastase or relative def a1AT and PMNs and macros release elastase (inhibited by a1AT). ii)smoke: incr PMNs and macros; inhibits a1AT
What is definitive test for COPD? What are 2 other tests? What is CXR good for?
i)PFT: obstruction=decr FEV1 and decr FEV1/FVC (FEV1: 50% is severe). Get incr TLC, RV, FRC b/c air trapped. Decr VC ii)CXR and a1AT genetics. iii)r/o pneumonia/pneumothorax. If severe, get hyperinflation, flattened diaphragm, enlarged retrosternal space.
what are signs of COPD? x3
i)decr FEV ii)auscult: end exp wheezes on forced expiration; decr breath sounds; insp crackles. iii)hyperressonance on percussion
What is most imp intervention in COPD? What are drugs that can be used? x3
i)smoking cessation ii)B2 agonist; anticholinergic (ipratropium): slower onset but last longer; steroids (decr inflamm)
What do you give for acute exacerbation in COPD?
1st: B agon/anticholin->systemic steroids and ABX. Give O2 to keep O2>90%. Use Noninvasive PPV to help in acute exacerbations. Intubate and mech ventilate if these don't stabilizeDon't give B block in acute COPD or asthma exacerbations.
What are secondary treatment options besides drugs for COPD? x3
i)O2 therapy: improves survival and quality of life in COPD and hypoxemia. It will decr pulm HTN and cor pulmonale b/c hypoxemia leads to that; need ABG to determine need for O2. ii)vaccinate against Strep pneum iii)SX: resect or xplant
What are criteria for cntinuous or intermittent long term O2 therapy in COPD? x2
i)PaO2 55 mmHg or O2 sat<88%. ii)OR, PaO2 55-59+polycythemia or cor pulm
What is the order of operations for treating COPD?
i)mild to mod: MDI (metered dose inhaler) of anticholin and/or B agonists and steroids. ii)severe: add continuous O2 TX (if hypoxemic) and pulm rehab.
What are complications of COPD? x3
i)acute exacerbation: most common cause is infection, cardiac dz. ii)secondary polycythemia: response to chronic hypoxemia. iii)pulm HTN and cor pulm
What is the triad for asthma?
i)airway inflamm ii)airway hyperresponsiveness iii)reversible airflow obstruction
What is diff b/w extrinsic and intrinsic asthma?
i)extrinsic: atopic patients IgE to environmental Ags; ass'n w/eczema and hay fever. ii)intrinsic: not atopic or environmental triggers
What are clinical features of asthma? x4. When do they occur? When are they worst
i)wheezing ii)cough iii)chest tightness iv)SOB. v)Occurs w/in 30 in of exposure vi)worst at night
What is DDX of wheezing besides asthma? x4
i)CHF: edema of airways and congestion of bronchial mucosa. ii)COPD: inflamed airways may be narrowed or bronchospasm iii)cardiomyopathies, pericardial dz: edema around bronchi iv)lung cancer: obstructed airway
What drugs can be used for asthma? x4
i)B agonist ii)steroids iii)montelukast-leukotriene iv)cromolyn
What is long term B agonist good for? x2 What does corticosteroids have an effect on? x2 What side effect do inhaled steroids cause? x3
i)night time sxs; exercise induced asthma ii)decrease hyperresponsiveness; decr number of exacerbations iii)oral thrush; sore throat; hoarseness
What is tx for acute severe asthma exacerbation x4
i)B agonist ii)steroids iii)O2 iv)Abx if infection suspected...intubate if resp failure
What are complications of asthma? x3
i)status asthmaticus: no response to std meds ii)acute resp failure iii)pneumothorax, atelectasis, pneumomediastinum
What is triad of ASA sensitive asthma? What should you avoid?
i)nasal polyps, ASA, asthma. ii)NSAIDs b/c can get systemic rxn
What is precipitant of bronchiectasis? x2 What happens?x2
i)infection in patient w/airway obstruction; b) impaired defense or drainage. ii)a)permanent, abnl dilation and destruction of bronchial walls b)cilia are damaged
What are causes of bronchiectasis?x4
i)CF ii)infection iii)humoral immunodef (abnl lung defense) iv)airway obstruction
What is longterm tx of mod asthma? severe?
i)mod: daily inhaled steroid OR cromolyn, methylxanthine, or antileukotriene. ii)high dose steroid OR long acting B agonist OR methylxanthine and PO steroid
What are clinical features of bronchiectasis? x4
i)chronic cough w/lots of mucopurulent smelly sputum. ii)dyspnea iii)hemoptysis: rupture BV near bronchial wall iv)recurrent pneumonia
How to DX bronchiectasis? x3
i)PFTs: obstructive ii)CT scan is study of choice iii)CXR nonsp but abnl. iv)bronchoscopy sometimes
What is TX of bronchiectasis x4
i)Abx for acute exacerbations: signalled by changed sputum, fever, CP ii)bronchial hygiene: a)hydration b)drainage of mucus c)bronchodilators
What is main goal of TX of bronchiectasis? x2
i)prevent hemoptysis ii)prevent pneumonia
What is clinical features of CF? x3
i)obstructive lung dz pattern ii)pancreatitis iii)recurrent lung infection (pseudomonas)
How to treat CF? x4
i)annual flu vaccine ii)Abx for lung infection iii)iatro pancreatic enzymes iv)fat soluble vit supplements
What are 2 kinds of lung cancers? Which is more common? Why imp to differentiate?
i)Small cell: 25% ii)NSCLC: 75% (ADC, large cell, sq cell, bronchoalveolar). iii)treatment is diff
Which cancer has lowest ass'n w/smoking? What are 2 risk factors?
i)ADC ii)a)radon b)COPD (independent of smoking)
How are the 2 kinds of CA staged?
i)NSCLC: TNM ii)SCLC: a)ltd: chest + supraclav nodes (no cervical or axillary). b)extensive: outside of ltd
What are local clinical features of lung cancer and which one shows these the most? x5
i)hemoptysis ii)obstruction iii)wheezing iv)cough v)dyspnea
What are Sxs of local invasion in lung cancer? x6
i)phrenic nerve palsy ii)hoarseness (Recurrent laryngeal) iii)Pancoast iv)Horner's v)malig effusion vi)SVC syndrome
What does SVC syndrome present as? x4
i)facial fullness; ii)facial and arm edema; dilated veins over ant chest, face, arms; JVD
What local invasive/paraneoplastic sxs is SCLC ass'd w/? x4 Sq CC? x4
i)Eaton Lambert; SVC; SIADH; ACTH secretion ii)SqCC: Pancoast; PTH pr; long bone pain
What nerves does Pancoast affect? What are the sxs? x3
i)C8 and T1-2. ii)a)pain in arm b)weakness in arm b/c brachial plexus c)Horner's ass'n
What is clinical pic of Eaton Lambert Syndrome x3
i)paresthesias ii)decr DTR iii)prox muscle weakness/fatigability
What tests should be performed for lung cancer DX? x3 How are each imp?
i)CXR: most imp radio study for DX: if stable for 2 years, benign. ii)CT scan: for staging (see mets and mediastinal lympadenopathy). iii)Needle BX: SCLC vs NSCLC
What kind of lesion is bronchoscopy and cyto exam of sputum for?
i)for central lesions. Bronchoscope can't go past 2ndary br of bronchial tree
What is the treatment for NSCLC and SCLC?
i)NSCLC: a)SX*, but if mets outside chest, no SX. b)Rads c)chemo uncertain. ii)SCLC: a)chemo* b)rads: only for ltd dz
What is most common cause of mediastinal mass? What is most common according to location? x2 for each
i)metastatic CA (esp lung). ii)a)ant: thyroid, teratogenic tumor b)Middle: lung Ca; lymphoma c)posterior: neurogenic; esophageal mass
What are clinical features of mediastinal mass? x5
i)cough (compressed bronchi/trachea) ii)CP iii)dysphagia iv)SVC syndrome v)compression of nerves (hoarse, Horners, hemidiaphragm paralysis via phrenic)
How to DX mediastinal mass? If benign, what to do?
i)CT ii)if asympto and benign: observe