112 Journal of Research in Medical and Dental Science | Vol. 8 | Issue 1 | January 2020 Journal of Research in Medical and Dental Science 2020, Volume 8, Issue 1, Page No: 112-119 Copyright CC BY-NC 4.0 Available Online at: www.jrmds.in eISSN No. 2347-2367: pISSN No. 2347-2545 Corresponding author: Yousif Mohamed Y Abdallah e-mail: y.yousif@mu.edu.sa Received: 01/01/2019 Accepted: 22/01/2020 INTRODUCTION Trauma is an injury that can be life threatening and cause psychological and physical impacts. Recently, in Saudi Arabia, the number of traffic accidents and their effects has increased significantly. There is no clear protocol to describe radiation exposure of patients during radiation investigations. The usual radiation exposure varies between 10 and 100 mGy, which may increase the possibility of cancer incidence, especially among a population with high exposure [1-3]. Trauma X-ray imaging is one of the most common diagnostic tools used to analyze and identify pathological conditions [4- 5]. However, it results in a significant radiation dose to patients. Because the applications of trauma radiology are growing quickly, it is crucial to appraise the radiation dosages during the examination and try to reduce them as much as possible [6-8]. Demographic data and exposure Evaluation of Radiation Dose Received by Trauma Patients in Majmaah Area, Saudi Arabia Yousif Abdallah 1 *, Nouf Abuhadi 2 , Abdulrahman Alzandi 3 , Tariq Alqahtani 4 1 Department of Radiological Science and Medical Imaging, College of Applied Medical Science, Majmaah University, Saudi Arabia 2 Department of Diagnostic radiology, College of Appied Medical Science, Jaz an U niversity, Jazan, Saudi Arabia 3 Radiological Sciences Department, College of Applied Medical Sciences, Imam Abdulrahman bin faisal University, Saudi Arabia 4 Department of Medical Equipments Technology, College of Applied Medical Science, Majmaah Unversity, 11952, Majmaah, Saudi Arabia ABSTRACT Background: Radiation exposure is the main hazard in medical X-ray investigations. The aim of this study was to evaluate the radiation dose received in chest x-rays for trauma patients in the Majmaah area. The results were compared with other national and international findings. Furthermore, the reference radiation dose level was measured for different examinations by conventional x-rays. Thus, conventional X-ray examination of trauma patients was investigated. Materials and Methods: Seven hundred patients were evaluated at King Khalid Hospital, Majmaah. The average and range of exposure parameters were 73.5 ± 9.1 (65.9–124.9) and 2.7 ± 0.71 (0.2–9.6) for X-ray tube potential (kVp) and current multiplied by the exposure time (s) (mAs), respectively. Results: The entrance surface air kerma dose measured for chest (PA), skull (AP and LAT), lumbosacral (AP and LAT), and knee joint (AP and LAT) were 0.20+0.07 with a range of 0.13–0.37, 0.86 ± 0.01 with a range of 0.09–2.92 and 0.09 ± 0.02 with a range of 0.04–0.17, 0.10 ± 0.02 with a range of (0.04–0.17 and 0.1 ± 0.02 with a range of 0.03–0.16, and 0.86 ± 0.01 with a range of 0.09–2.92, respectively. The measured doses for pediatric patients were 0.20 ± 0.07 (0.13–0.37) and 0.18 ± 0.03 (0.06–0.23) for female and male patients, respectively. Conclusion: It was concluded that 90% of the procedures had normal findings. However, a precise justification is required, especially for young patients. For dose measurement techniques, the machine- and patient-related factors must be fixed in order to obtain accurate results. Key words: Trauma patients, Radiology, Radiation protection HOW TO CITE THIS ARTICLE: Yousif Mohamed Y Abdallah, Evaluation of Radiation Dose Received by Trauma Patients in Majmaah Area, Saudi Arabia, J Res Med Dent Sci, 2020, 8(1): 112-119.