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Dr_SINBOONA_ARARSA_KENENI_SHORT_PEARLS_ON_MEDICAL_CASES_EDITION

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6. Findings of obstructive pattern:

FEV1 significantly reduced less 70%FVC reduced or normal

FEV1/FVC =reduced less than 80% or 0.7Raised total lung

capacity Raised residual Volume

7. Findings of restrictive pattern:FEV1 reduced less than

80%FVC =significantly reduced FEV1/FVC =normal or increased

more

than 80%Lung compliance , TLC RV are decreased

8. Causes of obstructive pattern :

COPD

Asthma

Bronchiectasis

Bronchiolitis oblitera

9.Causes of restrictive pattern

Idiopathic pulmonary fibrosis

Pulmonary haemorrhages

Asbestosis

Sarcodosis

ARDS

Extrinsic allergic alevolitis

Histocytosis Coal worker's pneumococcal

Polio

Myasthenia Obesity

Scoliosis

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