Type - 2 Respiratory Failure is seen in
Type - 2 Respiratory Failure is hypoxia + hypercapnia.
p(A - a) O2 is normal or decreased seen in conditions of decreased respiratory drive(Brainstern injury),airway disease(EOPD,ASTHMA),paralusis of Diaphragm,Kyphoscoliosis,Myasthenic erisis.
Pneumonia
Atelectasis
COPD
Pulmonary Embolism