COPD
sedative or opioid overdose
Cystic FIbrosis
Guilain-Barre Syndrome
Kyphoscoliosis
Pneumonia
Spinal Cord injury
Poliomyelitis
Muscular Dystrophy
multiple sclerosis
Shock
Pain
Massive PE
Severe obesity
Severe head injury
Thoracic trauma
ARDs
Toxic Inhalation
Pulmonary artery laceration and hemorrhage
Cardiogenic pulmonary edema
Brain stem injury or infarction
Hepatopulmonary Syndrome
Asthma
