Asthma for the Clinician Flashcards
what three things describe an asthma airway
bronchoconstriction, oedema, mucous
pathophysiology of asthma?
mast cell and eosinophil degranulation in response to allergin,
what happens to airways in chronic inflammation from asthma
structural changes, epithelial damage
what 3 things is involved in airway remodelling from Asthma?
smooth muscle hyperplasia
goblet cell hyperplasia
thickening of basement membrane
is there a genetic predisposition for asthma?
polygenetic
what is AHR? meaning?
airway hyperresponsiveness (Not asthma but more likely to develop)
Name 9 triggers of asthma?
Allergens Pollutants (smoke, fumes) URTIs Cold dry air exercise emotion/anxiety food meds GORD
that meds can trigger asthma?
aspirin
betablockers
what kind of flow in a wheeze?
turbulent
when do you see pulsus paradoxus? 2 times?
asthma
pericarditis
how does normal airway air flow?
laminar
how are breathsounds and heart sounds during asthma attack?
reduced
how to confirm asthma with spirometry?
200ml or 12% improvement with bronchodilator
how to confirm asthma with peak expiratory flow?
20% variation day to day
what is spirometry is unremarkable for asthma?
bronchoprovocation test