Pulmonology Flashcards
beta-blockers are contraindicated in patients with _____ lung disease
obstructive (due to bronchoconstriction)
amiodarone is contraindicated in patients with _____ lung disease
restrictive (due to pulmonary fibrosis)
what are the primary long-term treatments for asthma vs. COPD
asthma: albuterol inhaler
COPD: anticholinergics (ipatropium, tiotropium)
what is the diagnostic test for allergic bronchopulmonary aspergillosis
serum IgE
Pickwickian syndrome involves what three main symptoms
Pickwickian syndrome (obesity hyperventilation) -BMI > 30, daytime hypercapnea/hypoxemia, sleep-disordered breathing
how do patients with Pickwickian syndrome develop decreased respiratory drive
chronic hypercapnia decreases chemoreceptor sensitivity to CO2
a cavitary lesion with adjacent crescent and movement within the lesion with position change in a patient with intermittent hemoptysis for several months should make you think of what disease
aspergillosis (fungus ball moves around in cavitary lesion on position change)
what are some ways to increase functional residual capacity after surgery
coughing, chest physiotherapy, incentive spirometry, ambulation, repositioning, elevate head of bed
a large mediastinal mass with associated elevations in AFP and beta-hCG are suggestive of what disease
non-seminomatous germ cell tumor (seminomatous has only beta-hCG elevation)
treatment for Legionnaire’s
a macrolide or floroquinolone
are proximal or distal deep veins of the leg more common sources of PE’s
proximal (ileofemoral vein)
when a patient who experienced blunt chest trauma experiences worsening dyspnea, hypoxia and alveolar opacities on x-ray after fluid rescucitation what do you suspect was the original problem
pulmonary contusion
fluid rescucitation after contusion leads to pulmonary edema
what three conditions comprise Light’s criteria for determining pleural exudate
- pleural protein/ serum protein > 0.5
- pleural LDH/ serum LDH > 0.6
- pleural LDH > 2/3 the limit for serum LDH
workup algorithm for categories of lung disease diagnosed with spirometry
check FEV1/FVC ratio; if low do albuterol challenge test –> if improves then asthma, if not then COPD
if FEV1/FVC ratio is high check DLCO; if normal then chest wall musculoskeletal weakness, if low suspect interstitial lung disease
popcorn calcification on chest CT suggests
hammartoma
bull’s eye calcification on chest CT suggests
granuloma
how can you differentiate consolidation from pleural effusion on lung exam
consolidation: bronchial breath sounds, dullness to percussion, increased tactile fremitus (good sound transmission)
pleural effusion: decreased breath sounds, dullness to percussion, decreased tactile fremitus (poor sound transmission)
best initial therapy for anaphylactic shock
IM epinephrine (antihistamines, bronchodilators, vasopressors are all secondary to getting epi on board)
what are some extrapulmonary manifestations of sarcoidosis
erythema nodosum (w/ painful shin lesions), high ACE, hypercalcemia, periosteal bone resorption, uveitis, polyarthralgias
a patient with COPD suddenly develops dypsnea and decreased oxygenation; what disease process should you automatically suspect
spontaneous secondary pneumothorax
how do you manage massive hemoptysis (>600mL per day or 100mL per hour)
- secure ABC’s and intubate
- position patient with bleeding lung in dependent position
- bronchoscopy to locate source and provide interventions (electrocautery, balloon tamponade)
- pulmonary artery embolization or thoracotomy if patient does not improve
what value of PaO2/FiO2 is considered severe hypoxemia in ARDS
PaO2/FiO2
what are the different management bundles for mild vs. moderate vs. severe asthma exacerbation
mild: oxygenate, inhaled SABA, steroids
moderate: oxygenate, inhalted SABA + ipatropium, steroids
severe: intubate, inhaled SABA + ipatropium, steroids, consider mag sulfate, to ICU
asthma exacerbation patients with normal PaCO2 are likely experiencing what
decreased respiratory drive due to fatigue (they should be blowing off more CO2 to result in low CO2 due to hypoxemia); you will likely need to intubate soon
massive PE=
PE complicated by hypotension or acute right heart strain (can be evidenced by RBBB or JVD)
in a child with inspiratory stridor, what governs whether you will do laryngoscopy vs. neck x-ray
laryngomalacia is more chronic and no infectious sx ==> laryngoscopy
progressive soft tissue airway compression is usually due to infection and you would see fever ==> neck x-ray
treatment for laryngomalacia
reassurance as most cases resolve by 1.5 years
in severe cases (apnea, cyanosis, rapidly increasing stridor, poor weight gain) do supraglottoplasty