Question

The point where the QRS complex and the ST segment meet is called the ? junction or the ? point. The ST segment is considered elevated if the segment is deviated above the baseline and is considered depressed if the segment deviates below it. When looking for ST segment elevation or depression, first locate the ? point. Next use the TP segment to estimate the position of the isoelectric line. Then compare the level of the ST segment to the isoelectric line.

1) Virtual
2) Absolute

Answer 1

The intersection of the QRS complex and ST segment is called the J point. ST-segment elevation or depression is assessed by locating the J point and comparing the ST segment to the isoelectric line, with elevations potentially indicating an acute MI and depressions suggesting hypoxia.

Step-by-step explanation:

The point where the QRS complex and the ST segment meet is called the J point or the junction. To assess ST-segment elevation or depression on an ECG, one must first locate the J point. Next, the TP segment is used to estimate the position of the isoelectric line, which acts as the baseline. Comparison of the level of the ST segment to the isoelectric line allows the determination of whether the ST segment is elevated or depressed.

An elevated ST segment is often observed in patients with an acute myocardial infarction (MI), whereas a depressed ST segment can indicate hypoxia. It's important to note that interpretation of an ECG requires some training and understanding the detailed vector analysis provides a comprehensive picture of cardiac function.