COPD Flashcards
chronic bronchitits develops due to inflammation within the airways, which causes?
fibrosis of bronchiole walls
airway oedema
broncho constriction
mucous hypersecretion
is narrowing of the airways reversible?
not fully
chronic bronchitis defined as productive cough on most days for greater than 3 months of how many successive years?
2
emphysema can be caused by which deficiency?
alpha 1 anti trypsin
inflammation in emphysema results from ?
release of enzymes which break down alveolar walls and capillaries
what is barrel chest due to?
hyperinflation
in pink puffer, how are near normal oxygen and co2 maintained?
hyperventilation
typical features of pink puffers?
pink complexion, as not really cyanosed hyperventilation with use of accessory muscles, leaning forward mild cough thin and cahexic reduced breath sounds on auscultation
blue bloaters (bronchitis)
airways are narrower increased cardiac output V/Q mismatch low O2 and high CO2 hypoxia results in pulmonary hypertension and eventually cor pulmonale
why do you get for pulmonale
increased cardiac output due to hypoxia which causes pulmonary hypertension and for pulmonate
typical features of blue bloaters?
blue complexion
not breathless
cough with lots of sputum
whee on auscultation
main driver of respiration in these patients is?
hypoxia
treatment of mild COPD?
salbutamol
ipratropium
moderte
ipratropium
salmoetarol or tiotropium + ICS
consider oral theophylline
severe
tiotropium
salmeterol + ICS
oral steroids
pulmonary hypertension
long term oxygen therapy