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

Abnormalities in the inferior leads, specifically leads II, III, and aVF on an electrocardiogram (ECG), typically indicate inferior wall ischemia. When these leads show changes such as ST-segment elevation or depression, T-wave inversions, or Q waves, it suggests that there is a reduced blood flow to the inferior part of the heart, often due to occlusion of the right coronary artery, especially in a right-dominant coronary system.

Inferior wall ischemia can present with typical signs and symptoms of myocardial ischemia, including chest pain or discomfort, and may be associated with other clinical findings such as changes in vital signs or the presence of risk factors for coronary artery disease. Recognizing these changes is crucial for timely intervention and management of potential myocardial infarction.

The other conditions listed do not specifically correlate with abnormalities in the inferior leads. Anterior ischemia relates to the anterior leads and generally presents with changes in leads V1 to V4. Ventricular hypertrophy is associated with specific voltage criteria in the precordial leads and has a different pattern of ECG changes. Similarly, left atrial enlargement may show alterations primarily in the leads looking at the left atrium's electrical activity, primarily in