Flashcards in Pulmonary Function Tests Deck (8)
What are the 3 types of pulmonary function tests?
effort dependent, effort independent and gas diffusion tests
What is the FER?
forced expiratory ratio
What happens to FEV1, FEV and FER in asthma?
FEV1 decreases, FEV is normal and ratio is <75%
What happens to FEV1, FEV and FER in COPD?
FEV1 and FEV decrease, ratio is <75%
What happens to FEV1, FEV and FER in restrictive lung disease?
FEV1 and FEV decrease, ratio is >75%
What is a non invasive marker of
eosinophilic airway inflammation in asthma and what is it not useful in?
Exhaled breath nitric oxide
What is type 1 respiratory failure?
Type 1 respiratory failure is defined as hypoxemia without hypercapnia, and indeed the PaCO2 may be normal or low.