急性疼痛處理一直手術後病患重要護理問題，本研究目的為進行病患定義性特徵表現與止痛劑（Demerol）使用之預測相關性探討。研究對象為台灣某醫學中心外科病房腹部手術後2天內55位病患，以「9項急性疼痛定義性特徵」評估工具進行收案，預計資料以SPEE 8.0 軟體進行分析。研究結果發現基本屬中個案引流管數越多者疼痛定義性特徵得分愈高（p<.05）；傷口愈大者與止痛劑（Demerol）使用呈正相關（p<0.5）。引流管數目越多者女性兩者疼痛得分明顯(p<.05)。止痛劑（Demerol）使用與急性疼痛定義性特徵邏輯回歸結果顯示皺眉、身體固定與睡眠困擾對止痛劑使用有較高的預期能力（Exp(B)=2.03, 1.939. p<.05），但與病患喊痛之表現無統計上相關，本研究結果可提供護理人員疼痛護理之參考。

The purpose of this study was to investigate the relationship between the definition of patients’ acute pain characteristics and their analgesic usage. A nine-item f acute pain defining characteristics scale was used to evaluate how patients to define their pain and require the analgesic (Demerol). This study collected a convenience sample of 55 patients who had had abdominal surgery within two days in one medical center in Taiwan. The data were evaluated with correlation and logical regression by SPSS 8.0 for Windows. Results indicated that patients with more drainage tubes tended to have more caute pain defining characteristics; the bigger ther patients’ patients’ incision wounds the more frequently they used Demerol (p<.05). Both patients had more drainage tubes. In addition, females had more pain intensity (p<.05). Patients facial expressions of pain, fixed body position, and sleeplessness were positively related to Demerol usage (Exp(B)=2.03, 1.939. p<.05). However, there is no significant relationship between the patients’ complaining of pain and Demerol usage. Understanding the relationships between the definition of patients’ acute pain characteristics and their analgesic (Demerol) usage might provide information to nurses to improve patient pain management.