Obstructive vs Restrictive Diseases

Question 1

Obstructive Diseases

Answer 1

• characterized by limitation of airflow due to partial or complete obstruction
• total lung capacity normal
  forced vital capacity is normal
  -decreased expiratory flow rate, measures as forced expiratory volume at 1 sec

Question 2

Restrictive Diseases

Answer 2

• characterized by reduced expansion of lung parenchyma accompanied by decreased total lung capacity
• total lung capacity is decreased
  forced vital capacity is reduced
• normal FEV1/FVC

Question 3

OBSTRUCTIVE:

Answer 3

reduction in air flow (due to partial/complete obstruction)

*difficult exhaling air (air remains in lung after

Question 4

RESTRICTIVE:

Answer 4

reduction in LUNG VOLUME

*difficulty getting air INSIDE the lungs (due to stiffness of wall tissue)

Question 5

obstructive diseases: examples

Answer 5

• Pulmonary Fibrosis (stiffness)
• Pulmonary Edema
• Atelectasis
• Aspiration
• ARDS
• Bronchiolitis/ Bronchiectasis

Question 6

restrictive diseases; examples

Answer 6

• COPD
• Asthma
• Bronchiectasis