Background & Aims: Invasive procedures Such as angiography, influence on physiological reactions and vital signs of patient and side effects such as dysrhythmia, spasms and vessels rupture caused, and him/her in danger. Aromatherapy and Relaxation leads to mental relaxation, feel comfortable and physiological responses can be changed. The aim of this study was comparison of Aroma inhalation and Benson Relaxation on the Vital Signs of patients experiencing coronary angiography. Materials & Methods: This study was a quasi-experimental and conducted on three groups of patients undergoing catheterization. This study is a clinical trial with pretest and post test, This study performed on 100 patients hospitalized for coronary angiography in sari Fatemeh-Zahra hospital,Iran in 2014.They were selected based on purposive sampling and randomly divided to control(n=33), Benson Relaxation(n=34)and Aromatherapy(n=33 )groups. The collecting data tools consisted of, demographic questionnaire data, recording sheet of hemodynamic variables blood pressure gauge and chronometer. The collecting data tools consisted of, demographic questionnaire data, recording sheet of hemodynamic variables blood pressure gauge and chronometer. Questionnaires have been filled out for three group after and before aromatherapy. After sampling, the collected data was analyzed by using SPSS-16 software, Chi-square and Mann-Whitney tests, cross Kalvalys were analyzed. Results: The findings show that there was a significant reduction in mean physiological parameters (systolic blood pressure, respiratory rate, pulse number) between relaxation and control groups and Aromatherapy and control groups. But the results showed no significant statistical difference between the relaxation and aromatherapy groups after the intervention. Conclusion: Considering the results of this study can be suggested that using relaxation and aromatherapy before Invasive diagnostic technics could be keep stable vital signs.

Keywords: Benson Relaxation, Aromatherapy, Coronary angiography, Vital Sign

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