Obstructive Lung Disease Flashcards
Are obstructive lung disease reversible or irreversible?
Irreversible
Which populations are most susceptible to obstructive diseases?
Women
AA
Irreversible enlargement of the airspaces distal to the terminal bronchioles with accompanying fibrosis
Emphysema
Type of emphysema where proximal parts of acini are affected but distal alveoli are spared
Centriacinar emphysema
Which lobes is centriacinar emphysema most common in?
Upper/Apical lobes
Type of emphysema where acini are uniformly enlarged from bronchiole to terminal alveoli
Panacinar emphysema
Which lobes is panacinar emphysema most common in?
Lower lobes
Which emphysema type is associated with A1AT in children?
Panacinar emphysema
The pathogenesis of emphysema is?
Noxious particles irritate lungs –> epithelial damage/inflammation –> parenchymal destruction and airway disease
Which enzyme activity is deficient in pts with emphysema?
Protective antiproteases
Tobacco smoke produces oxidants the inhibit transcription of which gene?
NRF2
What are the presenting Sx’s of emphysema?
Dyspnea
Cough/Wheezing
Weight loss
What will be seen on CXR?
Hyperinflated lungs with possible blebs
Barrel-chested, prolonged expiration, hunched over posture, breathing through pursed lips =
Pink Puffer –> Emphysema
Which pt population is at highest risk for interstitial emphysema?
Premature children on + pressure ventilation
Adults on artificial ventilation