Coronary artery disease is caused by atherosclerosis which narrows the coronary arteries and reduces blood flow to the heart. Risk factors include older age, male gender, family history, diabetes, hypertension, smoking, obesity, and stress. Symptoms include chest pain called angina that is usually brought on by exertion and relieved by rest. Treatment involves medications to open arteries and reduce risk factors, as well as lifestyle changes and cardiac rehabilitation. Nursing care focuses on monitoring for complications, administering medications, maintaining IV access, and providing education to the patient.