Tag: QT interval

The electrocardiogram (ECG or EKG) is the gold standard for non-invasive cardiac monitoring, providing a graphic representation of the heart’s electrical activity over time. Each heartbeat generates a specific series of electrical waves and intervals—known as the PQRSTU complex—that correspond to distinct mechanical events within the cardiac cycle. Mastering the morphology and duration of these components is essential for clinicians to accurately diagnose arrhythmias, conduction blocks, and myocardial ischemia.

Explore the critical electrocardiogram (ECG) findings associated with acquired Long QT Syndrome, a potentially life-threatening cardiac condition. This article provides a detailed explanation of how a prolonged QT interval can manifest on an ECG, its clinical implications, and the importance of prompt recognition and management.

An electrocardiogram (ECG) tracing provides a window into the heart’s electrical activity, intricately linked to its mechanical contractions during the cardiac cycle. This diagram correlates the P wave, QRS complex, T wave, PR interval, QT interval, QRS interval, ST interval, P-R segment, S-T segment, atrial systole, ventricular systole, and ventricular diastole with their respective electrical and mechanical events, offering a detailed view of heart function. Exploring this image enhances understanding of how electrical signals translate into the heart’s pumping action.

An electrocardiogram (EKG or ECG) is a powerful diagnostic tool that records the electrical activity of the heart, providing critical insights into its function. This diagram illustrates a normal EKG tracing, featuring the P wave, QRS complex, T wave, PR interval, QT interval, QRS interval, ST interval, P-R segment, and S-T segment, which together reflect the heart’s electrical and mechanical cycles. Exploring this image offers a comprehensive understanding of how these components are used to assess cardiac health.