Differential diagnosis of acute respiratory failure

​airway obstruction 
-chronic obstructive pulmonary disorder exacerbation 
-asthma 
-pulmonary thromboembolism 
-re expansion of the lung 
-acute respiratory distress syndrome 
-volume overload states
-mitral regurgitation 
-mitral stenosis 
-left ventricular dysfunction 
-lung contusion 
-interstitial lung disease
-aspiration pneumonia 
-pneumonia 
-massive ascites
-pleural effusion 
-pneumothorax
-flail chest
-hypokalemia 
-hypophosphatemia 
-phrenic nerve injury 
-phrenic nerve dysfunction 
-spinal cord injury 
-Guillain Barre Syndrome 
-poliomyelitis 
-organophosphates 
-aminoglycosides
-myasthenia gravis 
-botulism 
-myxedema
-fever
-infection
-seizures
-central nervous system infection 
-intracranial hypertension 
-brainstem disroders
-sedative agent 
-hypnotic agent 
-opioid
-anesthetics