what is spiromtery used for?
measure functional lung volumes in one breath
name some obstructive lung diseases?
> reversible (asthma)
> irreversible(COPD)
> bronchiecstasis
> inhaled foreign body
> tumor
sign of obstructive lung disease
a long time to exhale (wheeze), not much breathed out in 1 second but total volume is not bad
FEV1< FVC
FEV1/FVC< 0.7
FEV1<0.8
What are some restrictive lung disease?
usually affect the interstitium so affects the chest wall movement and elasticity
scoliosis kyphosis ankylosing spondylitis Guillain-Barre Myasthenia gravis pilmonary fibrosis sarcodosis asbestosis
signs of restrictive lung disease
due to restriction most of the breath is out in the first second
lung volume is decreased
FVC is lower
FEV1/FVC> 0.8