Test 2 - Pulmonary Flashcards
EOD Asthma
- Episodic/chronic Sx of airflow obstruction
- Reversibility of airflow obstruction, either spontaneously or following bronchodilator therapy
- Sx usually worse at night or in early morning
- Prolonged expiration & diffuse wheezes on physicals
- Limitation of airflow on PFT or +bronchoprovocation challenge
EOD COPD
- Hx of smoking
- Chronic cough, dyspnea & sputum production
- Rhonchi, dec. intensity of breath sounds & prolonged expiration on physical
- Airflow limitation on PFT that is not fully reversible & most often progressive
EOD Bronchiectasis
- Chronic productive cough w/ dyspnea & wheezing
2. Radiographic findings of dilated, thickened airways & scattered, irregular opacities
EOD Cystic Fibrosis
- Chronic or recurrent productive cough, dyspnea & wheezing
- Recurrent airway infections or chronic colonization w/ H influenza, P aeroginosa, S aureus or Burkholderia cepacia. Bronchiectasis & scarring on CXR
- Airflow obstruction on spirometry
- Pancreatic insufficiency, recurrent pancreatitis, distal intestinal obstruction syndrome, chronic hepatic disease, nutritional deficiencies, or male urogenital abnormalities
- Sweat Cl concentration >60 on two occasion or gene mutation
EOD Bronchiolitis
- Insidious onset of cough & dyspnea
- Irreversible airflow obstruction on PFT
- Minimal findings on CXR
- Relevant exposure or risk factor: toxic fumes, viral infections, organ transplantation, connective tissue disease
EOD Interstitial Lung Disease
- Insidious onset of progressive dyspnea & non-productive chronic cough
- Tachypnea, small lung volumes, bibasilar dry rales
- Digital clubbing & RHF w/ advanced disease
- CXR w/ low lung volumes & patchy distribution of ground glass, reticular, nodular, reticulonodular or cystic opacities
- Reduced lung volumes, pulmonary diffusing capacity & 6-min walk distance, hypoxemia w/ exercise
EOD Sarcoidosis
- Sx related to lung, skin, eyes, peripheral nerves, liver, kidney, heart & other issues
- Demonstration of noncaseating granulomas in a Bx
- Hepatosplenomegaly, hypercalcemia, inc. ACE
EOD Community Acquired Pneumonia
- Fever or hypothermia, tachypnea, cough w/ or w/o sputum, dyspnea, chest discomfort, sweats or rigors
- Bronchial breath sounds or inspiratory crackles
- Parenchymal opacity on CXR
- Occurs outside of the hospital or w/in 48 hrs of hospital admission in a Pt not residing in a long-term care facility
EOD Nosocomial pneumonia
- At least 2 of: fever, leukocytosis, purulent sputum
- New or progressive parenchymal opacity on CXR
- Especially common in Pts requiring intensive care or mechanical ventilation
EOD anaerobic pneumonia & lung abscess
- Hx or predisposition to aspiration
- Indolent Sx, including fever, wt loss, malaise
- Poor dentition
- Foul-smelling purulent sputum
- Infiltrate in dependent lung zone, w/ single or multiple areas of cavitation or pleural effusion
EOD Pulmonary Tuberculosis
- Fatigue, Wt loss, fever, night sweats & productive cough
- Risk factors for acquisition of infection: household exposure, incarceration, drug use, travel to an endemic area
- CXR - pulmonary opacities, most often apical
- Acid-fast bacilli on smear of sputum of sputum culture + for M tuberculosis
EOD Pulmonary Disease caused by Non-TB Mycobacteria
- Chronic cough, sputum production & fatigue; less commonly malaise, dyspnea, fever, hemoptysis & wt loss
- Parenchymal opacities on CXR, often w/ thin-walled cavities that spread contigously & often involve overlying pleura
- Isolation of non-TB mycobacteria in a sputum culture
EOD Histoplasmosis
- Linked to bird droppings & bat exposure, common along river valleys
- Most asymptomatic, respiratory illness most common problem
- Widespread disease common in AIDs or other immunosuppressed states w/ poor prognosis
- Bx of affected organs w/ culture or urinary polysaccharide antigen
EOD Coccidiodomycosis
- Flu-like illness w/ malaise, fever, backache, HA & cough
- Erythem nodosum common w/ acute infection
- Dissemination may result in meningitis, bony lesions or skin & soft tissue abscesses
- CXR findings vary from pneumonitis to cavitation
- Serologic tests useful, spherules containing endospores demonstrable in sputum or tissues
EOD Pneumocystosis (PCP)
- Fever, dyspnea, nonproductive cough
- Bilateral diffuse interstitial disease w/o hilar adenopathy by CXR
- Bibasilar crackles on auscultation in many cases
- Reduced pO2
- P jiroveci in sputum, bronchoalveolar lavage fluid or lung tissue
EOD Aspergillosis
- MCC of non-candidal invasive fungal infection in stem cell or organ transplant Pts
- Predisposing factors: leukemia, bone marrow or organ transplant, late HIV infection
- Pulmonary, sinus & CNS are most common disease sites
- Demonstration of galactomannan or beta-D-glucan in serum or other body fluid samples is useful for early Dx & Tx
EOD Respiratory Syncytial Virus & Other Paramyxoviruses
- RSV is a major cause of morbidity & mortality at extremes of age
- Care is supportive
- A monoclonal antibody against RSV, palivizumab, is good but expensive prophylaxis among Pts w/ certain at-risk pulmonary conditions
EOD Seasonal Influenza
- Abrupt onset w/ fever, chills, malaise, cough, coryza & myalgias
- Aching, fever & prostration out of proportion to catarrhal Sx
- Leukopenia
EOD Avian Influenza (H5N1)
- Mostly from SE Asia & Egypt
- Clinically indistinguishable from influenza
- Rapid antigen assays to confirm Dx
EOD H1N1
- Flu-like illness w/ consistent epidemiologic background
2. Respiratory swab
EOD Severe Acute Respiratory Syndrome (SARS)
- Mild, moderate or severe respiratory illness
- Travel to endemic area w/in 10 days before Sx onset (Places in Asia)
- Persistent fever, dry cough, dyspnea
- Dx confirmed by antibody testing or isolation of virus
- No specific Tx
EOD Pulmonary Venous Thromboembolism
- Predisposition to venous thrombosis
- Dyspnea, CP, hemoptysis, syncope
- Tachypnea & widened alveolar-arterial pO2 difference
- Elevated rapid D-dimer & characteristic defects on CT arteriogram of chest, ventilation-perfusion scan or pulmonary angiogram
EOD Pulmonary HTN
- Dyspnea, fatigue, CP & syncope on exertion
- Narrow splitting of 2nd heart sound w/ loud pulmonary component, findings of RV hypertrophy & cardiac failure in advanced disease
- Hypoxemia & inc. wasted ventilation on PFTs
- EKG evidence of RV strain or hypertrophy & RA enlargement
- Enlarged central pulmonary arteries on CXR
EOD Obstructive Sleep Apnea
- Daytime somnolence or fatigue
- Hx of loud snoring w/ witnessed apneic events
- Overnight polysomnography demonstrating apneic episodes w/ hypoxemia
EOD Acute Respiratory Distress Syndrome
- Acute onset of respiratory failure
- Bilateral radiographic pulmonary opacities
- Absence of elevated LA pressure
- Ratio of pO2 in arterial blood to fraction conc. of inspired O2 (FIO2) <200, regardless of the level of PEEP
EOD Cor Pulmonale
- Sx & signs of chronic bronchitis & pulmonary emphysema
- Elevated JVP, parasternal lift, edema, hepatomegaly & ascites
- EKG tall peaked P waves, R axis dev & RVH
- CXR - enlarged RV & PA
- Echo or radionuclide angiography excludes primary LV dysfunction
EOD Pleural Effusion
- May be asymptomatic; CP common w/ pleuritis, trauma or infection, dyspnea w/ large effusions
- Dullness to percussion & dec. breath sounds over the effusion
- Radiographic evidence of pleural effusion
- Diagnostic findings on thoracentesis
EOD Spontaneous Pneumothorax
- Acute onset of unilateral CP & dyspnea
- Minimal physical findings in mild cases
- Unilateral chest expansion, dec. tactile fremitus, hyperresonance, diminished breath sounds, mediastinal shift, cyanosis & HOTN in tension pneumo
- Presence of pleural air on CXR
EOD Bronchogenic Carcinoma
- New cough or change in chronic cough
- Dyspnea, hemoptysis, anorexia & wt loss
- Enlarging nodule or mass, persistent opacity, atelectasis or pleural effusion on CXR or CT
- Cytologic or histologic findings of lung CA in sputum, pleural fluid or Bx
EOD Mesothelioma
- Unilateral, nonpleuritic CP & dyspnea
- Distant (>20 yrs) Hx of exposure to asbestos
- Pleural effusion or pleural thickening or both on CXR
- Malignant cells in pleural fluid or tissue Bx
COPD vs asthma pathophysiology
C - CD8 cells, macrophages & neutrophils
A - CD4, eosinophils, leukotrienes, IgE
Obstruction vs restriction
O - big lungs, dec. airflow, normal/inc. lung V, normal/dec. DLCO
R - Normal airflow, dec. lung V, normal/dec. DLCO
FEV1/FVC ratio
Amount of air exhaled in 1st sec compared to total amount of air exhaled
Above LLN - 70% = restrictive or normal
If FVC is below normal = obstructive
What diseases can cause a dec. DLCO?
- Emphysema
- Fibrosis
- Pulmonary vascular disease
- Anemia
What disease can cause an inc. DLCO?
Inc. pulmonary capillary blood volume
- Polycythemia
- Pulmonary hemorrhage
- L to R shunt
- Asthma
What are the obstructive diseases?
- Emphysema
- Chronic bronchitis
- Asthma
- Bronchiectasis
- Cystic Fibrosis
- Sarcoidosis (sometimes)
What are the restrictive diseases?
- Pleural disease - effusions, mass
- Alveolar disease - edema, infiltrates
- Interstitial disease - fibrosis, sarcoidosis
- Neuromuscular disease - ALS, Myasthenia Gravis, Guillan-Barre
- Diaphragmatic paralysis
- Thoracic cage abnormality - obesity, kyphoscoliosis
Common S/S w/ obstructive diseases?
- DOE, cough, wheeze
- Smoker/exsmoker
- Quiet lungs/wheeze
- FH
- Barrel chest
- Pursed lip breathing
- Clubbing in CF
Common S/S w/ restrictive diseases?
- DOE, cough, orthopnea
- Smoker/exsmoker
- Crackles/rales
- FH
- Abnormal chest wall
- Clubbing
What is emphysema?
permanent enlargement of the airspaces distal to the terminal bronchioles w/ destruction of their walls w/o obvious fibrosis
-T lymphocytes, macrophages release elastases leading to destruction of airspaces
What is chronic bronchitis?
chronic, productive cough for 3 months in 2 successive years
-CD8 T lymphocytes, neutrophils
S/S Emphysema
Pink Puffers
- Dyspnea
- Thin
- Accessory muscle use
- Quiet chest
- Presents after 50
S/S Chronic Bronchitis
Blue Bloaters
- Chronic cough
- Productive mucopurulent sputum
- DOE
- Overweight & cyanotic
- Peripheral edema
- Noisy chest - rhonchi & wheezes
- Presents in late 30s & 40s
Causes of COPD
- Smoking
- alpha-1 antitrypsin deficiency
- Chemicals/pollution
Chest exam findings in COPD
- Hyperinflation w/ inc. A/P
- Inc. resonance
- Dec. breath sounds & early inspiratory crackles
- Wheezing may not be present at rest but can be evoked w/ forced expiration/exertion
- Prolonged duration of expiration
CXR w/ COPD
Hyperinflation of lungs & flat diaphragms
if emphysema main - parenchymal bullae or subpleural blebs
bronchitis - nonspecific peribronchial & perivascular markings
Tx COPD
A. FEV1 >50%, 0-1 exacerbations/yr, low risk
- SABA PRN, Anticholinergic/beta-agonist
B. A w/ more Sx
- SABA w/ pulmonary rehab, LABA, anticholinergic
C. FEV1 2 exac/yr
- SABA w/ pulmonary rehab, LABA w/ corticosteroid or anticholinergic, consider surgery
D. C w/ more Sx
- LABA + corticosteroid or anticholinergic, LABA + corticosteroid + phosphodiesterase inhibitors, consider surgery
What can cause asthma symptoms?
- Extrinsic allergies
- Allergic bronchopulmonary aspergillosis
- Intrinsic asthma
- Extrinsic nonallergenic
- Aspirin sensitivity
- Exercise induced
- Asthma w/ COPD
What can cause bronchiectasis?
- Cystic Fibrosis
- Alpha-1 antitrypsin deficiency
- Hypogammaglobulinemia
- Common variable immunodeficiency
- Primary ciliary diskinesia
- Congenital anatomic defects
- Pulmonary infections -TB, pertussis
- Foreign body aspiration
- Tumors
What disease causes a ‘finger in glove’ appearance on a CXR?
Bronchiectasis
-thickened bronchial walls w/ ring shadows
Dx Bronchiectasis
- Crackles, esp in bases
- Clubbing
- Cachexia
- Lady Windmere Syndrome
- C&S - H influenza, Pseudomonas aeruginosa, S PNA
- PFTs normal at 1st, restrictive or obstructive later
- CXR - finger in glove appearance
- CT - dilated & thickened airways, cystic lesions
Tx Bronchiectasis
- Hydration
- O2
- Postural drainage w/ chest percussion or flutter valves
- Smoking cessation
- Flu & pneumovax vaccines
- Surgical resection maybe
- Abx
What is the most common fatal hereditary disorder in whites?
Cystic Fibrosis
What is the most common cause of severe chronic lung disease in the young?
Cystic Fibrosis
S/S Cystic Fibrosis
- Inc. AP diameter
- Basilar crackles
- Hyperresonance to percussion
- Clubbing
- Salty taste to skin
PFT & CXR in Cystic Fibrosis
- Dec. FEV1/FVC ratio
- Dec. FEV1
- Inc. TLC
- Dec. DLCO
- Diffuse interstitial disease w/ bronchiectasis & nodular densities of mucoid impactions
Causes of interstitial lung disease
- Hypersensitivity pneumonitis - birds, hottub, molds, fungus
- Idiopathic
- Drugs - chemo, radiation, amiodarone, methotrexate, macrodantin
- Occupations - foundry, mining, stoneworker, asbestos
- Connective tissue disorders - scleroderma, RA, polymyositis, lupus
Idiopathic Pulmonary Fibrosis
- Usually older people
- M>F
- Insidious onset
- Dyspnea, dry cough
- Asymptomatic, routine CXR finding
- FH
Findings w/ ILD
- Non-specific
- Bilateral rales
- Connective tissue disease signs
- Clubbing
- Cor Pulmonale
CXR ILD
- Reduced expansion
CT is key for diagnosis
Which diseases have a lower lung zone predominance?
- Idiopathic pulmonary fibrosis
- Connective tissue disease assoc. w/ ILD
- Asbestosis
Which diseases have an upper lung zone predominance?
- Sarcoidosis
- Hypersensitivity pneumonitis
- Silicosis
- Langerhans Cell Histiocytosis
- Ankylosing spondylitis
CT w/ idiopulmonary fibrosis
- Subpleural reticular changes inc. in bases
- Minimal ground glass
- Honeycombing
- Bronchiectasis
May need Bx to diagnose
Tx idiopulmonary fibrosis
No real Tx
- O2
- Flu shot & pneumovax
- Pulmonary rehab
- Lung transplant
S/S Asbestosis
- Inspiratory crackles
- Clubbing
- Pleural plaques
- Linear opacities in lower lungs
- Restrictive PFT
- Exertional dyspnea
- Dry cough
Lung Bx for definitive Dx
Supportive Tx
S/S Silicosis
May be asymptomatic
- Hilar node calcification - egg shell pattern
- Small rounded opacities
- Tachypnea
- Prolonged expiration, wheezes, rhonchi, rales
- Cor pulmonale, cyanosis possible
- Restrictive PFT
Diseases w/ caseating granulomas
central necrosis or dead cells
- TB
- Histoplasmosis
- Coccidiomycosis
- Bastomycosis
- Cat scratch fever
Diseases w/ non-caseating granulomas
NOT related to infection
- Sarcoidosis
- Berylliosis
- Wegeners granulomatosis
- Crohns
What is Lofgren’s syndrome?
Seen in sarcoidosis
fever, bilateral hilar adenopathy & erythema nodosum
What is Heerdfordt Syndrome?
Seen in Sarcoidosis
Fever, uveitis & parotitis w/o VII nerve involvement
What is the most common neurologic finding in Sarcoidosis?
CN VII Nerve palsy
Bell’s Palsy
What are common findings w/ cardiac Sarcoidosis?
- CP
- Palpitations/Fluttering/skipping
- PVCs
- AV Blocks
- PSVT
Tx w/ steroids
CXR scale in sarcoidosis
0 - Normal
1 - Bilateral hilar adenopathy
2 - BHA w/ parenchymal infiltrates (esp upper & middle lobes)
3 - Parenchymal infiltrates w/o BHA
4 - Fibrotic parenchymal disease w/ retraction of the hilar
CURB-65 scoring
Confusion U BUN >20 RR >30 breaths/min B SBP <60 65 or older
0-1 OutPt
2 short inPt
3 0 InPt
4-5 InPt/ICU
What are the common causes of CAP?
- Strep pneumonia
- H influenza
- M Catarrhalis
- S aureus
- K pneumonia
- Viral
Which PNA shows a current jelly sputum?
& hemoptysis
K pneumonia
Common in EtOH users
Which PNA is linked to air conditioners?
Legionella
Diarrhea, hyponatremia
Elderly, smokers, IC
Which PNA should you suspect w/ acute rigors?
S pneumonia
Rusty colored sputum
What is required on CXR to Dx CAP?
Pulmonary opacity
How can you differentiate btwn viral/bacterial CAP?
Procalcitonin test
Most common pathogens in Nosocomial PNA
HAP - MRSA, MSSA, Pseudomonas
VAP - Acineteobacter, Stenotrophomonas, MDROs
HCAP - S penumonia, H influenza
Anaerobic - Bacteroides, Fusobacterium
What typically causes viral PNA?
- Influenza
- RSV
- Adenovirus
- Parainfluenza
- Metapneumovirus
What are some complications of influenza?
- Secondary bacterial PNA
- Sinusitis, OM, purulent bronchitis
- Influenza PNA
- Inc. risk of MI
- Rhabdomyolysis
- Reye Syndrome
- Acute necrotizing encephalopathy
- Guillan Barre Syndrome
Tx for influenza
- Balanced electrolyte fluids
- NSAIDS, APA
- Neuraminidase inhibitors
-Zanamivir
-Osetlamivir
-Tamilflu
…best if 48h after Sx onset
What is the most common respiratory tract infection?
Human rhinovirus Type C
Triggers asthma & COPD
OM, croup, bronchiolitis, PNA
What is the MCC of bronchiolitis?
RSV
seen in children <6mo
common cause of AOM
What is the MCC of croup in kids?
Human parainfluenza virus
Tx - mild humidified air, neb epinephrine & steroids
Who commonly gets Pertussis?
<2 yo
Transmitted via respiratory droplets
Prevent w/ Tdap
Which PNA is seen more in COPD Pts?
H influenza
Stages of Pertussis
- Catarrhal - sneezing, coryza, malaise, cough at night
- Paroxysmal - bursts of harsh coughing followed by high pitching inspiratory whoop
- Convalescent - 4 wks after illness onset, cont. cough w/ dec. frequency & severity
S/S TB
- Slowly progressive constitutional
- Malaise, anorexial, unexplained wt loss, fever, night sweats
- Dry cough becoming purulent later
- Blood streaked sputum
- Post-tussive apical rales
Extrapulmonary findings of TB
- Scofula Ptts
- Meningitis
- Pericarditis
- Pleuritis w/ effusion
- Osteomyelitis
- Hepatosplenomegaly
ADRs Isoniazid
Tx for TB
used in pregnancy
1. Hepatotoxicity
2. Depletes B6 - give pyridoxine
Which TB drug causes optic neuritis?
Ethambutol
Avoided in kids
What labs should you monitor in TB Pts?
- LFTs
- BUN
- Serum Creatinine
- CBC
- Uric acid
- Baseline visual acuity & color vision testing
- ? monthly for signs of toxicity
- CXR baseline & final
What can causes a PE?
- Air (from caths during surgery)
- Fat (long bone Fx)
- Septic (IE)
- Tumor cells (RCC)
- Foreign bodies (talc, drug users)
S/S PE
- Dyspnea
- Pleuritic CP
- Cough, hemoptysis
- Palpitations, syncope
- Leg swelling & tenderness
- Tachycardia
- Tachypnea
- Inc. S2
- Presence of S4
- Crackles, wheezing
- Pleural friction rub
- RV heave
- Homan’s sign
What is Homan’s sign & when can it be seen?
Pain upon dorsiflexion of foot
sign of PE
Well’s criteria
- S/S of DVT
- Alternative Dx less likely than PE
- HR >100bpm
- Immobilization >3days or surgery in past 4 wks
- Previous PE/DVT
- Hemoptysis
- Cancer
Score >4 PE likely
What is Ortner’s syndrome?
Hoarseness/cough from compression of L recurrent laryngeal nerve by dilated main PA
Could be caused by Pulmonary HTN
S/S Pulmonary HTN
- Loud P2
- Pansystolic murmur of tricuspid regurg
- RV heave
- JVD
- Peripheral edema
- Hepatomegaly
Lungs usually clear
EKG changes w/ pulmonary HTN
- RVH
- Rt axis dev
- RBBB
or normal
What is normal RV systolic P & when is wrong when it’s raised?
28 mmHg
Raised >35 in pulmonary HTN
Tx of Pulmonary HTN
- Anticoagulants
- CCBs to lower systemic arterial P
- Prostacyclin - pulm vasodilator
- Heart-lung transplant usually needed
Causes of Cor Pulmonale
- Anatomic reduction of pulmonary vascular bead
- Emphysema, ILD, PE - Inc. blood viscosity
- Polycythemia - Inc. Pulmonary blood flow
- Congenital heart disease w/ L to R shunts
Causes of ARDS
- Sepsis
- Aspiration of gastric contents
- PNA
- Burns
- Chest trauma
- Fat embolism from long bone Fx
- Near drowning
- Pancreatitis
Signs of ARDS
- S3, S4
- JVD
- LE edema
- Cardiomegaly
- Effusions
- Kerley B lines
Tx of ARDS
Supportive
- Fluid mgmt
- DVT prophylaxis
- Stress ulcer prophylaxis - PPI
- Nutritional support
- Sedation/analgesia
- PEEP if necessary
- Prone ventilation
Obstructive vs. Restrictive sleep apnea
O - chest & abdomen move but no airflow due to position or anatomy
R - no signal to make you breathe
Influenza vaccinations
Recommended for everyone >6 mo unless egg allergy, febrile illness, guillan barre
- Trivalent inactivated vaccine - Fluzone, more Ag for elderly
- Trivalent live attenuated vaccine - contraindication in pregnancy
- Tamiful
TB CXR
- Primary Progressive Disease - unilateral lower or middle lobe infiltrates, pleural effusion, hilar adenopathy
- Reactivation - cavitary apical disease
- Elderly - often lower lobe
- Miliary - all over
- HIV/Immunocompromised - variable
- Resolution - hilar nodules + calcification, pleural scarring, Ranke complexes, bronchiectasis
What are Ranke Complexes & when are they seen?
calcified primary foci & lymph nodes seen in TB
What is the MCC of respiratory disease in premies?
Hyaline membrane disease
Deficiency of surfactant
Causes of Pulmonary HTN
- Idiopathic
- Heritable - mutation in BMPR2, ALK-1 or ENG
- Drug & toxins
- Connective tissue disease (scleroderma)
- HIV
- Portal HTN
- Congenital heart disease
- Schistomiasis
- Chronic hemolytic anemia
- Newborns
- L heart disease
Risk factors for obstructive sleep apnea
- Middle-aged over wt male
- > 18 size neck
- Loud snoring w/ sudden awakenings
- Morning HA
- Not rested in AM
- Daytime fatigue
- BMI >30
- Retrognathia/micronathia
- Crowded oropharynx
- Tonsillar & adenoid hypertrophy
- Pendulous uvula
- Nasal obstruction
Tx Sleep apnea
- CPAP
- Surgery
- Weight loss
- sleep on side, avoid EtOH, avoid meds
Transudate Causes
- CHF
- Cirrhosis
- Nephrotic syndrome
- Hypoalbuminemia
- Peritoneal dialysis
- Early atelectasis
- Central venous cath in pleural space
- Urinothorax
Exudate Causes
- Malignancy
- Infections
- PE
- Connective tissue diseases
- GI disease (pancreatitis, esophageal rupture)
- Asbestosis
- Drugs
- Post-cardic syndrome
- Hemothorax
- Chylothorax
- Uremia
What is Light’s Criteria?
Used to distinguish btwn exudative/transudative pleural effusion
- PF to serum protein ratio >0.05
- PF to serum LDH ratio >0.06
- PF LDH ?2/3 ULN serum LDH
What is a tension pneumothorax?
P intrapleural exceeds Patm
emergency
Tx of pneumothorax
- O2
- Observation for small iatrogenic or primary spontaneous pneumo
- Aspiration - if >4L, admit & chest tube
- Chest tubes
Risk factors for Bronchiogenic carcinoma
- Tobacco
- Asbestos
- Radon
- Radiation
- Arsenic, Cr, Ni, benzene
- Air pollution
- Age ~71
- Hx of CA
- Hx of COPD or lung disease
- M>F
- Poor Blacks
If calcium is seen in a lung nodule what does this usually mean?
benign
small, round, solid are good
ground glass or sub-solid is bad
What is a hamartoma?
Fat density tumor
Benign
May have popcorn calcification
What is a cardinoid nodule?
Slow growers Low malignant potential Assoc/ w/ an airway May have Ca2+ seen in younger Pts -pink/purple central lesion that is well vascularized Cut it out!!!
What are ground glass nodules
Hazy appearance
Slow growers
can represent early adenocarcinoma
What can intense shoulder pain be caused from?
Pancoast syndrome
Superior sulcus tumor
What is the most common lung CA?
adenocarcinoma
More common in young women & never smokers
Which CA has the strongest assoc to smoking?
Squamous cell carcinoma
assoc. w/ hypercalcemia
What is carcinoid syndrome?
- Wheezing
- Flushing
- Diarrhea
rarely seen w/ carcinoid tumors
Tx of NSCLC
IA-IIB - surgical resection, chemo w/ IIA&B
IIIA - Trimodality therapy
IIIA/B - chemoradiation
IV - Chemo w/ palliative care
How often to get CT w/ lesions?
Low risk - q 3mo for a year then q 6 mo for next 2 years
high risk - cut that shit out!
intermediate risk - Bx & CT
1st line test to Dx PE?
Spiral CT
What is the underlying abnormality in ARDS?
inc. permeability of the alveolar capillary membranes that leads to development of protein rich pulmonary edema
What is pulmonary alveolar proteinosis?
rare disease where phospholipids accumulate w/in alveolar spaces
Dx by bronchoalveolar lavage - milky appearance & PAS-positive lipoproteinaceous material
What is Loffler syndrome?
acute eosinphilic pulmonary infiltrates in response to transpulmonary passage of helminth larvae
Granulomatosis w/ polyangiitis
Idiopathic
combination of glomerulonephritis, necrotizing granulomatous vasculitis, small vessel vasculitis
Chronic sunusitis, arthralgias, fevers, skin rach & wt loss
What is bronchopleural fistula & when is it seen?
Large bronchus involved in lung injury
Complication w/ pneumothorax
How long does it take to see a normal CXR after PNA Tx?
up to 6 weeks
may show signs before CXR shows anything
What should you suspect with bullous myringitis?
Atypical CAP
seen in healthy young adults
MCC Mycoplasma PNA
What commonly infects neutropenic IC Pts?
Aspergillus, GNB & Candida
often have neg cultures
Causes of OM?
- Mycoplasma PNA
- Influenza
- Human rhinovirus Group C
- RSV
How do you treat human parainfluenza virus?
Steroids +
Mild - humidified air
Mod - Nebulized epinephrine