This study aimed to retrospectively examine patients evaluated by the Code Blue team on a Code Blue call in our hospital between 2009 and 2013.

Primary outcome: an examination of the survival rates and demographic data of the patients evaluated as an emergency by a Code Blue call in the period 2009-2013.Secondary outcome: to determine the rates of false Code Blue calls, the clinics giving Code Blue calls and the relationship between the times of Code Blue calls and mortality.Inclusion criteria: patients throughout the whole hospital for whom a Code Blue form was completed and who were evaluated by the Code Blue team on a Code Blue call.

Exclusion criteria: patients who refused treatment

Retrospective examination was made of the Code Blue notification forms which were completed by the anaesthesiologist as Code Blue team leader of the hospital. The age of the patient, gender, diagnosis, the department where admitted, time of Blue Code call, reason for Blue Code call, whether or not the Blue code call was appropriate, whether or not cardiopulmonary resuscitation was administered, if administered, the duration of cardiopulmonary resuscitation, whether or not the patient was postoperative, whether or not the patient had been discharged from the intensive care unit and if so, how many days had passed, the APACHE II score of the patient and expected mortality, were recorded by calculation of the data on thhe Code Blue notification form and in the hospital automated system. Patients were excluded from the study if they had refused treatment or if there was no record of the parameters necessary to calculate the APACHE II score.

Inclusion Criteria:

Patients throughout the whole hospital for whom a Code Blue form was completed and who were evaluated by the Code Blue team on a Code Blue call.

Exclusion Criteria:

Patients who refused treatment

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This study aimed to retrospectively examine patients evaluated by the Code Blue team on a Code Blue call in our hospital between 2009 and 2013.Retrospective examination was made of the Code Blue notification forms which were completed by the anaesthesiologist as Code Blue team leader of the hospital.