effects of lung die Flashcards
what is tidal volume
volume of air in each breath
what is ventilation rate
number of breaths per minute
what is forced expiratory volume ( FEV)
max vol of air breathed out in 1 second
what is forced vital capacity (FCV)
max vol of air possible to breath forcefully out
after deep breath in
how does TB affect lungs
gaseous exchange surface damage
tidal volume decreases
ventilation increases to take in enough 02
symptoms of TB
cough - blood/mucus
chest pains
shortness of breath
fatigue
how does fibrosis affect lungs
lungs less able to expand
tidal volume reduced
FVC reduced
faster ventilation rate
symptoms of fibrosis
shortness of breath dry cough chest pain fatigue weakness
how does asthma affect lungs
constriction of airways
FEV reduced
symptoms of asthma
wheezing
tight chest
shortness of breath
how does emphysema affect lungs
alveoli can’t recoil + alveolar walls destroyed
reduces gas exchange surfaces
increased ventilation rate
symptoms of asthma
shortness of breath
wheezing
