The baseline for evaluating ST segments for elevation is the
A)PR interval.
B)PR segment.
C)QRS interval.
D)T wave.

Question

Quizplus · Accepted Answer

The baseline for evaluating ST segments for elevation is the PR segment, which is the flat line between the end of the P wave and the start of the QRS complex. This segment represents the time when the electrical impulse is traveling within the AV node and the bundle of His, before the ventricles contract. It provides a stable baseline to compare the elevation or depression of the ST segment, which is crucial for diagnosing conditions like myocardial infarction.

The Baseline for Evaluating ST Segments for Elevation Is the