Texila International Journal of Public Health ISSN: 2520-3134 DOI: 10.21522/TIJPH.2013.13.03.Art012 Received: 24.05.2025 Accepted: 03.08.2025 Published on: 03.10.2025 *Corresponding Author: nasir.mufaq@uomosul.edu.iq Anxiety Level for Patients Undergoing Cardiac Catheterization: A Pre-Experimental Design Hasan Naeem Kareem 1 , Mohammad Basim Nadheer 2 , Zainalabideen Yasser Jumaa 1 , Ali Falah Hassan 2 , Abbas Fadhil Mousa 2 , Nasir Muwfaq Younis 3* 1 College of Nursing, University of Al Qadisiyah, Iraq 2 College of Nursing, University of Al-Ameed, Iraq 3 College of Nursing, University of Mosul, Iraq Abstract A major factor in lowering patients' symptoms of worry and panic is educating them prior to coronary angiography. The way that patients express their fear and anxiety depends on their gender. Nurses are thought to play a vital and essential role in patient education. A pre-experimental design (one group pretest-post test design). The study was conducted using a purposive sample of 51 adult patients of both sexes who were admitted to the cardiac catheterization unit at the Critical Care Unit of the Imam Hassan Al-Mujtaba Teaching Hospital. sections: two instruments have been used. Section I: The demographic data form for the patient includes seven items: age, gender, educational level, marital status, residence, occupational level, and smoking history. Section II: The 20 components that make up the State-Trait Anxiety Inventory (STAI). The study results indicate that the patients exhibited severe levels of anxiety with a mean (2.51) before the application of the program. While the patients exhibit moderate levels of anxiety with a mean (1.69) after the application of the program. Additionally, the study sample's overall responses during the pre-test and post-test periods differed in a highly statistically significant way, with a p-value of 0.000.The study shows that there is a positive effect of instructional Programs on Anxiety levels for patients undergoing cardiac catheterization where decreased levels of anxiety from severe to moderate, where the p-value for the two measurement periods was 0.000 HS. Keywords: Anxiety, Cardiac Catheterization, Patients. Introduction Coronary angiography is commonly used to assess and treat coronary artery disease, one of the leading causes of death worldwide [1]. For both men and women, coronary artery disease (CAD) is thought to be the leading cause of death. Plaque accumulation in the heart's arteries, which supply blood to the heart muscle, is the primary cause of CAD. A lack of blood flow to the heart muscle can result from plaque-induced artery tightening, which can cause irreparable damage. The World Health Organization estimates that around 18 million fatalities in 2008 were attributable to cardiovascular disease, and by 2030, that number is expected to rise to 23 million [2]. Patients' symptoms of worry and panic can be significantly reduced by educating them prior to coronary angiography. The way that a patient expresses their fear and anxiety depends on their gender. It is believed that nurses play an essential and crucial role in patient education [3]. Over 82% of individuals who had coronary artery angiography experienced anxiety prior to the procedure. Prior to angiography, patients with coronary artery disease have a much greater incidence rate of worry than people without the