What is a common feature of reverse T wave changes?

What is a common feature of reverse T wave changes?

• A. Occur in patients with high blood pressure
• B. Indicate a history of previous myocardial infarction
• C. Indicate ischemia in the heart
• D. Always show up in lead III

Answer: (C)

Reverse T wave changes are typically associated with ischemia in the heart. This occurs when there is an inadequate blood supply to the heart muscle, often due to blockage of the coronary arteries. When ischemia develops, it can affect the repolarization phase of the cardiac cycle, leading to alterations in the T wave on the electrocardiogram (EKG). Specifically, a reversed or inverted T wave suggests that there could be problems with blood flow, which is a key characteristic of ischemic conditions.

The other options may relate indirectly to cardiac health conditions but do not specifically define reverse T wave changes. High blood pressure can contribute to heart disease but is not a direct cause of these EKG changes. A history of previous myocardial infarction can show various EKG alterations but is not exclusive to reverse T waves. Additionally, reverse T wave changes can appear in various leads depending on where the ischemia is occurring; they do not necessarily have to be present in lead III specifically. Therefore, the most accurate characterization of reverse T wave changes is their indication of ischemia.