T wave inversion on an EKG may signal which condition?

T wave inversion on an EKG may signal which condition?

• A. Acute panic attack
• B. Hyperventilation
• C. Prior myocardial infarction
• D. Cardiac arrest

Answer: (C)

T wave inversion on an EKG is often associated with changes that occur in the heart's electrical activity due to various conditions. One significant condition indicated by T wave inversion is prior myocardial infarction, or heart attack. When myocardial tissue is damaged due to ischemia (insufficient blood flow), the repolarization of the heart's electrical activity is altered, leading to T wave changes on the EKG. In the case of a prior myocardial infarction, T wave inversion typically reflects areas of the heart that have been affected by a lack of oxygen and may indicate scarring or injury to the myocardium. This finding can also be seen in conditions of ongoing ischemia, but in the context of this question, it specifically suggests a past event. In contrast, while other situations like acute panic attacks, hyperventilation, or cardiac arrest can lead to changes in the heart's rhythm or rate, they do not specifically correlate to T wave inversion as a hallmark sign of previous heart muscle damage.

T wave inversion on an EKG is often associated with changes that occur in the heart's electrical activity due to various conditions. One significant condition indicated by T wave inversion is prior myocardial infarction, or heart attack. When myocardial tissue is damaged due to ischemia (insufficient blood flow), the repolarization of the heart's electrical activity is altered, leading to T wave changes on the EKG.

In the case of a prior myocardial infarction, T wave inversion typically reflects areas of the heart that have been affected by a lack of oxygen and may indicate scarring or injury to the myocardium. This finding can also be seen in conditions of ongoing ischemia, but in the context of this question, it specifically suggests a past event.

In contrast, while other situations like acute panic attacks, hyperventilation, or cardiac arrest can lead to changes in the heart's rhythm or rate, they do not specifically correlate to T wave inversion as a hallmark sign of previous heart muscle damage.