Background & objective : Recovery state or post - anesthetic awakening is one of the most dangerous anesthetic stages . Respiratory, cardiovascular and other complications such as nausea, vomiting, shivering, pain and restlessness have been reported . This study designed to investigate prevalence of this complications and its probable risk factors in Ardabil Fatemi and Alavi hospitals.

  Methods : In this prospective study, 160 patients were selected in Alavi and Fatemi hospitals during winter of 2001. We completed a sheath for everybody about their history of medical diseases, pervious history of anesthesia, addiction, drug abuse, smoking, physical class of ASA, type of anesthesia, time and place of surgery . Data was analyzed by SPSS software.

  Results : These results were obtained in patients after surgery in recovery room: shivering
36.3 % , pain 26.9 % , restlessness 21.3 % , respiratory complications 13.8 % , cardiovascular complications 12 % , nausea and vomiting 8.8 % . We found significant correlation between some risk factors with complications, e. g: shivering with history of medical diseases, drug abuse and place of surgery and so, pain with restlessness, respiratory complication and place of surgery .

  Conclusion : This study according to similar studies revealed higher prevalence of some of post - anesthetic complications as shivering, pain and restlessness in our samples .