<prompt> The commonest symptom post operatively seen is ?DepressionPsychosisEuphoriaNone of the above  <response>: Ans. is d i.e., None of the above Delirium is the commonest psychiatric problem postoperatively 1 Delirium - 20 2 Depression- 9 3 Dementia- 3 4 Functional Psychosis- 2 