Lung Pathologies Flashcards
1
Q
FEV1/FVC
A
Obstruction: >100% = possible normal variant 70-100% = mild obstruction 60-70% = mod obstruction 50-60% = mod - severe obstruction <50% = severe obstruction
2
Q
Obstructive Lung Disorder
A
difficulty getting air OUT
decr expiratory flows
3
Q
Restrictive Lung Disorder
A
difficulty getting air IN
4
Q
Primary indicator of obstructive impairment
A
FEV1/FVC <70%
5
Q
Restrictive ventilatory impairment is characterized by?
A
Reduced lung volumes:
TLC
FVC
FEV1
and relatively normal expiratory flow rates
6
Q
What value of FEV1/FVC indicates restrictive lung disorder?
A
Normal or >80%
7
Q
Examples of obstructive pathologies
A
Asthma
Emphysema
Chronic bronchitis
Cystic fibrosis
8
Q
Examples of restrictive lung disorders
A
Myasthenia gravis Pulmonary fibrosis Interstitial lung disease Pleural diseases Chest wall deformities Obesity Pregnancy Neuromuscular disease Tumor
