Emergency

!ARDS

!Respiratory Failure

!TPTX

!Acute Asthma exacerbation

!COPD Acute Exacerbation

Obstructive Conditions

Bronchospasm

Asthma

COPD

Bronchiectasis → May be O

Bronchiolitis

Central airway disease → May be O

Restrictive Conditions

Restrictive PFT

Parenchymal: ATIPS → low DLCO

Atelectasis