Cardiac Vascular Nursing Certification Practice Exam 2025 - Free Cardiac Vascular Nursing Practice Questions and Study Guide

The right coronary artery primarily supplies blood to the right atrium and the right ventricle. This artery also provides branches that serve the sinoatrial (SA) node and the atrioventricular (AV) node, which are critical for the electrical conduction system of the heart. The right coronary artery's distribution is essential for maintaining the contractility and overall function of the right side of the heart, ensuring efficient blood flow to the lungs for oxygenation.

In contrast, the other options reflect areas that are not primarily supplied by the right coronary artery. The left atrium and left ventricle are mainly supplied by the left coronary artery, particularly through the left anterior descending artery and the circumflex artery. The anterior portion of the heart refers to the front region, which is also served by the left coronary artery. The inferior vena cava is a major vein that carries deoxygenated blood from the lower body to the right atrium but does not receive direct supply from the right coronary artery. Thus, the accurate understanding of coronary artery supply is crucial for recognizing the function of different heart chambers and their associated vascular territories.