Abstract: Objective: To describe the current status of turningover related painamong mechanically ventilated patients and its changes in their first 24 hours staying in ICU after surgery, and to explore the relevant factors of turning over related pain. Methods: A descriptive design was used and a total of 100 patients were recruited in this study. Patients' turning over related pain was assessed with Chinese version of Behavioral Pain Scale (C-BPS) and Richmond Agitation-Sedation Scale (RASS). Each patient was assessed 6 times: 5 min before turning over, during turning over, 5 min, 10 min, 15 min, 20 min after turning over. Results: The practice of turning over could obviously increase patients' pain intensity. The median score of pain intensity during turning was 5. The highest score of pain intensity was 10. There were 87 patients (87.0%) with pain. There were 32 patients (32.0%) with significant pain. At 5 min after turning over, the pain intensity score returned to the level of that in 5 min before turning. The patients with lower levels of sedation, wearing analgesia pump and younger age had lower pain scores. Conclusion: Turning over can significantly increase patient's pain intensity. RASS score, whether to own analgesia pump, and the age were correlated with patient's pain intensity score.

Key words: pain; turning over; mechanically ventilated; surgery; relevant factor