Cardiac Medicine Certification (CMC) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Cardiac Medicine Certification Test with confidence. Our comprehensive quiz offers flashcards and multiple-choice questions, along with hints and explanations to aid your understanding. Get ready to excel in your certification journey!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the typical ECG change indicative of an anterior wall myocardial infarction?

Negative T waves in lead II
ST elevation in V1-V4
Deep Q waves in V5-V6
Altered heart rate in the inferior leads

The correct answer is: ST elevation in V1-V4

An anterior wall myocardial infarction typically presents with ST elevation in the precordial leads, specifically in V1 to V4. This pattern is indicative of significant ischemia of the anterior wall of the heart, which is primarily supplied by the left anterior descending artery. The ST segment elevation reflects the acute phase of myocardial injury, where myocardial cells are increasingly depolarized due to the lack of oxygen. The leads V1, V2, V3, and V4 are positioned over the anterior wall of the left ventricle; hence, ST elevation in these leads suggests that there is a disruption of blood flow to this area of the heart. While other choices mention abnormalities that can occur with different types of cardiac conditions, they do not specifically indicate anterior wall myocardial infarction. For instance, negative T waves in lead II can occur in various conditions but are not specific to anterior infarction. Deep Q waves in V5-V6 can suggest previous infarctions but are primarily associated with lateral or inferior wall infarctions, and altered heart rate in inferior leads does not specifically indicate the anterior wall involvement.