IRCT20130616013690N10 IRCT 2021-07-24 Shiraz University of Medical Sciences The effect of lemon essence on patients undergoing lower limb fractures surgeries The effect of lemon essence on anxiety, physiological indices and post-operative nausea & vomiting in patients undergoing lower limb fractures surgeries 2021-12-16 anticipated 90 Complete https://irct.ir/trial/57331 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Randomization description: Firstly, Rajai and Namazi hospitals are selected as two separate strata. Then, using Winpepi software and balanced randomization of separate strata, a list of random allocation is set for 90 patients. Therefore, according to the list in each stratum (hospital), 45 patients are randomly divided into the intervention or control groups, Blinding description: To conducting blinding, assistant researcher who collects data, as well as statistician who analyzes the data, are blinded to the groups and the assignment of individuals in the groups. N/A Lower limb fracture surgery. Intervention 1: Intervention group: Take five drops of lemon essence on a cotton pad and attached to the patient's collar with a pin at a distance of 20 cm from the head. Aromatherapy starts in the morning of the lower limb fracture surgery and will be extended at two-hour intervals until the end of the surgery, in recovery room and 16 hours after surgery. Intervention 2: Control group: Bitter almond oil, which is odorless, will be used in a similar way of the intervention group. Yes - There is a plan to make this available What will be shared: Primary outcomes would be shared. When: Starting 6 months after publication article To whom: People and researchers working in academic institutions Conditions: Data are provided for information only. Where to obtain: Data is available via email rambodma@yahoo.com. How to obtain: Data is available via email rambodma@yahoo.com. Comments: