Final answer:
The statement that acute posterior wall MI induces ST elevations in leads V7 to V9 is true. These ECG leads are helpful in detecting changes in the posterior part of the heart during an acute MI.
Step-by-step explanation:
The statement that acute posterior wall myocardial infarction (MI) induces ST elevations in leads placed over the back of the heart, such as leads V7 to V9, is true. These leads are specifically placed to detect changes in the posterior part of the heart. An electrocardiogram (ECG) is an essential tool in the diagnosis and classification of myocardial infarctions. ST-elevations are a significant indicator of acute injury in specific areas of the heart muscle. When a posterior wall MI occurs, ST segment elevations can be observed in these additional leads, which are not part of the standard 12-lead ECG but can be used when a posterior MI is suspected.
Complete question:
Acute posterior wall MI induces ST elevations in leads placed over the back of the heart, eg, leads V7 to V9.
a. True
b. False