IRCT20221227056941N1 IRCT 2023-02-01 Shahid Beheshti University of Medical Sciences Investigating of the Effect of Aromatherapy with lavender on the Satisfaction, Pain and Physiological indicators of Patients undergoing endoscopic retrograde Investigating of the Effect of Aromatherapy with lavender on the Satisfaction, Pain and Physiological indicators of Patients undergoing endoscopic retrograde cholangiopancreatography (ERCP) 2023-04-05 anticipated 80 Complete https://irct.ir/trial/67762 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: To randomize and assign people to the intervention and control groups, the function of random numbers will be used, so that in the Excel software, the groups are first entered in the form of A and B below each other in one column; Because the number of samples in each group is set to 40, therefore, 40, B and A should be entered below each other and in order. In the opposite column, random numbers are generated using the RAND command. In the next step, using the sort command, the generated random numbers are sorted from small to large or vice versa, which changes the order of the groups, A, B. Using the new order, people are assigned to different groups, Blinding description: Both the control and observation groups do not know the type of scent that is used, and instead of writing the name on the bottle of solution used, the number one and two is written. The researcher is aware of this numbering. The solutions are used in a closed glass bottle that is the same in terms of color and volume of the solution. Also, in order to carry out the intervention, the control and intervention groups are in separate rooms. N/A آندوسکوپی دستگاه گوارش. Intervention 1: Before the endoscopy, four drops of lavender essential oil with a concentration of 2% (product of Zardband company) will be dripped on sterile gauze and placed on the chest of patients in the intervention group, and they will be asked to inhale it for 30 minutes. Intervention 2: Control group: Before the endoscopy, four drops of normal saline are dripped on sterile gauze and placed on the chest of control group patients, and they will be asked to inhale it for 30 minutes. Yes - There is a plan to make this available What will be shared: Based on the objectives in the proposal, the level of satisfaction, pain and physiological index before and after aromatherapy are reported and some individual information mentioned in the variable section. When: November 1401 To whom: Researchers, Shahid Beheshti University of Medical Sciences, study subjects, university and hospital researchers Conditions: After analysis, the data are available to others through publication in scientific research journals. Where to obtain: Roya rajabi .E-mail: rajabiroya00@sbmu.ac.ir. phone number 09123313745. No 135., Helal Ahmar9 Ave., Nehzat Blv How to obtain: Information will be available through printing the article. But if a person wants more and additional information, he can express his request through email, phone and in person. Then, according to the amount and type of data that will be considered, information is provided. Comments: