Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 50 11 2012 11 15 771 777 EN Mohammad Abbasinazari Department of Clinical Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran. AND Anesthesiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Samaneh Zareh-Toranposhti Department of Clinical Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran. Abdollah Hassani Department of Clinical Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Mohammad Sistanizad Department of Clinical Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Homa Azizian Department of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran. Yunes Panahi Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran. 2015 09 28 Malpractice in preparation and administration of intravenous (IV) medications has been reported frequently. Inadequate knowledge of nurses has been reported as a cause of such errors. We aimed to evaluate the role of nurses' education via installation of wall posters and giving informative pamphlets in reducing the errors in preparation and administration of intravenous drugs in 2 wards (ICU and surgery) of a teaching hospital in Tehran, Iran. A trained observer stationed in 2 wards in different work shifts. He recorded the nurses’ practice regarding the preparation and administration of IV drugs and scored them before and after the education process. 400 observations were evaluated. Of them, 200 were related to before education and 200 were related to after education. On a 0–10 quality scale, mean ±SD scores of before and after education were determined. Mean ±SD scores of before and after education at the 2 wards were 4.51 (±1.24) and 6.15 (±1.23) respectively. There was a significant difference between the scores before and after intervention in ICU (P<0.001), surgery (P<0.001), and total two wards (P<0.001). Nurses' education by using wall poster and informative pamphlets regarding the correct preparation and administration of IV drugs can reduce the number of errors. https://acta.tums.ac.ir/index.php/acta/article/view/3991 https://acta.tums.ac.ir/index.php/acta/article/download/3991/3966