Identify various lung diseases according to findings on pulmonary function tests.

Explanation:

The first thing to do is to orient yourself to the parameters given. Then go on and see the choices to be matched. Usual  ones are as follows

Obstructive: FEV1/FVC reduced < 70% predicted

Restrictive: FEV1/FVC normal or increased but both are reduced compared to predicted. 

Cystic fibrosis: Mixture of restrictive and obstructive

Scleroderma: Restrictive, HRCT very suggestive.

Emphysema: Obstructive, DLco decreased, HRCT diagnostic, Compliance increased.

Chronic bronchitis: Obstructive, Reids index increased (ratio of bronchial wall   mucus secreting layer thickness total thickness).

Pulmonary Hemorrhage: DLco increased only in this condition. Please remember that there is pulmonary hemorrhage in goodpasture's syndrome.