<prompt> In type -II respiratory failure, there isLow p02 and low pCO2Low p02 and high pCO2Normal p02 and high pCO2Low p02 and normal pCO2  <response>: Type ll respiratory failure occurs as a result of alveolar hypoventilation and results in the inability to eliminate carbon dioxide effectively.It can be caused by drug overdose,brainstem injury,hypothyroidism,myasthenia gravis,Guillain -Barre syndrome,electrolyte derangements,myopathy,etc.So there will be hypoxia and hypercapnia. Ref:Harrisons medicine-18th edition,page no:2200. 