Pulm Flashcards
Obstructive lung disease: (↓/↑) TLC (↓/↑) FEV1/FVC (↓/↑) compliance (↓/↑) elasticity
↑TLC, ↓FEV1/FVC (<70%), ↑compliance, ↓elasticity
Restrictive lung disease: (↓/↑) TLC (↓/↑) FEV1/FVC (↓/↑) compliance (↓/↑) elasticity
↓TLC, ↑FEV1/FVC, ↓compliance, ↑elasticity
Emphysema:
smoking causes…
A1AT deficiency causes…
smoking causes centriacinar emphysema (upper lungs)
A1AT deficiency causes panacinar emphysema (lower lungs, pts <50 y/o)
Defn and Tx of stage I-IV obstructive lung disease?
- (FEV1 ≥80%) Tx short-acting bronchodilators (albuterol, ipratropium)
- (FEV1 50-80%) add long-acting
bronchodilators (salmeterol, tiotropium) - (FEV1 30-50%) add inhaled steroids (fluticasone, triamcinolone)
- (FEV1 <5o% w/ hypoxia) add O2 therapy for 18 hrs/day
COPD exacerbation tx?
bronchodilators + abx + systemic steroids + O2 therapy
Management of Asthma: 1-2 attacks/wk? 2+ attacks/wk? daily attacks? continuous attacks?
1-2 = prn albuterol
2+ = add low dose inhaled CS
daily = add LABA (salmeterol)
ct = add high dose inh CS
Churg-Strauss syndrome:
asthma + eosinophilia + granulomatous vasculitis
Infection a/w bronchiectasis?
Dx of bronchiectasis?
recurrent Pseudomonas pneumonia
high-res CT scan shows “signet rings”
Etiology of bronchiectasis?
cystic fibrosis (MCC), Kartagener syndrome (∆dynein)
MC lung cancer in women and nonsmokers?
tx?
Bronchial adenoma; lobectomy is curative
Lambert-Eaton myasthenic syndrome =
SCLC → anti- VGCC antibodies → myasthenia gravis-like presentation
Paraneoplastic syndromes a/w lung cancers?
squamous cell makes PTH-rP
SCLC makes ADH and ACTH (SIADH and cushings)
tx Pleural effusion if:
transudative?
exudative?
paraneoplastic?
transudative → Tx diuretics + Na+ restriction
exudative → Tx underlying disease
parapneumonic → abx ± chest tube drainage
Pleural fluid analysis: amylase = milky fluid = bloody fluid = lymphocytic fluid = pH <60 =
amylase = esophageal rupture, pancreatitis, malignancy
milky fluid = chylothorax
bloody fluid = cancer
lymphocytic fluid = TB
pH <60 = r/o RA
Empyema: MCC?
s aureus
Presentation of tension pneumothorax?
mediastinal shift, hypOtension, JVD, absent breath sounds, hyperresonance to percussion
ILD presentation?
Dx?
management?
dyspnea, nonproductive cough, fatigue
Dx spirometry (↓TLC, ↑FEV1/FVC) → get CXR (honeycomb lung) + tissue bx + UA if hematuria
Causes of Drug-induced pulmonary fibrosis?
amiodarone, busulfan, bleomycin, MTX, or nitrofurantoin
Presentation of Sarcoidosis?
tx?
young black female w/ respiratory complaints,
erythema nodosum, and blurry vision (anterior uveitis)
steroids
dx of Sarcoidosis?
complications?
CXR shows bilateral hilar LN-opathy (pulmonary fibrosis is end-stage finding); tissue bx shows noncaseating granulomas w/ Schaumann and asteroid bodies
GRAINeD – ↑IgG, rheumatoid arthritis, ↑ACE, interstitial lung dz, noncaseating granulomas, ↑1α- hydroxylase → ↑vitamin D
presents as classic ILD
CXR –> honeycomb lung
tissue bx shows eosinophilic granulomas
dx?
tx?
Histiocytosis X
steroids vs. lung txp (if not responding)


triad of necrotizing vasculitis, necrotizing granulomas in lungs and upper respiratory tract, and
necrotizing glomerulonephritis → hematuria + hemoptysis
dx?
tx?
Wegener granulomatosis:
↑c-ANCA; tissue bx shows necrotizing granulomas
cyclophosphamide
asthma + eosinophilia + necrotizing vasculitis
dx?
tx?
Churg-Strauss syndrome:
incr p-ANCA
steroids
rheumatoid nodules + pneumoconiosis 
Caplan syndrome (a/w coal workers pneumoconiosis)
cancer a/w Asbestosis?
bronchogenic carcinoma»_space; mesothelioma
inhalation of silicon → fibrosis of upper lungs
Dx CXR shows upper lung fibrosis + “egg shell” calcifications
Tx?
Silicosis:
Tx supportive care
(classic ILD sx) + fever + eosinophilia
Dx CXR shows peripheral infiltrates,
dx?
tx?
Eosinophilic pneumonia:
get p-ANCA to r/o Churg-Strauss
Tx steroids
Goodpasture’s:
dx?
tx?
Dx tissue bx shows linear staining get c-ANCA to r/o Wegener
Tx steroids + cyclophosphamide + • plasmapheresis