本研究目的在探討管路留置病人接受約束之相關因素。以立意取樣將置放侵入性管路之135位病人列為收案對象，依文獻查證擬定觀察紀錄表收集資料，以SPSS 15.0軟體進行統計分析；結果顯示加護病房留置管路病人的約束率為48%，影響護理人員執行約束因素有病人昏迷指數分數、溝通能力、管路數量，管路種類以氣管內管、中心靜脈導管及周邊動脈導管為主。研究結果建議加護護理人員：（一）當病人置放氣管內管及中心靜脈導管兩種侵入性管路，且管路數量≥3種及昏迷指數＜12分者，應加強護理評估病人約束的必要性，建議醫師給予減輕病人焦慮及不適之輔助藥物。（二）對昏迷指數≥12分之患者，應加強病人對侵入性管路的認知與溝通，以獲取病人之合作。本研究建議制定護理人員執行侵入性管路置放病人約束前之護理評估流程，進而降低不當之約束。

The aim of this study was to analyze the impacts of the restraint protocol used by nurses in a coronary care unit (CCU). Method: We enrolled 135 patients with invasive catheterizations. Analyses were performed by SPSS. Results: Factors that affected nurses to perform the restraint techniques were the patient's Glasgow coma scale (GCS) score, communication ability, and the amount of invasive catheterizations. Conclusion: First, we suggested reinforcing nurses assessment of the necessity of restraints on patients who received more than 3 catheters and GCS scored<12.Second, if patients GCS scored≥12, we suggested that the staffs strengthen the patient's cognition of the catheter in communication and explain the importance of catheters. We expect that this study will provide nurses with a standard of nursing assessment before applying restraints on patients with multiple invasive catheterizations. The results may further promote the quality of restraint and lower the incidence of inappropriately using it.