Your 33 year old patient has a heart rate of 150 BPM. Analysis of the ECG reveals a regular rhythm with a tall upright P wave preceding each narrow QRS complex. The P waves are partially buried in the T wave of the preceding beat. This is likely the result of:

Question

Quizplus · Accepted Answer

This description is indicative of a tachycardia originating from the sinoatrial (SA) node, characterized by a regular rhythm, a high heart rate (150 BPM), and the presence of P waves before each QRS complex, which suggests that the atria are activating normally from the SA node. The fact that P waves are partially buried in the T wave of the preceding beat is a common finding in rapid heart rates but does not change the origin of the rhythm.

Your 33 Year Old Patient Has a Heart Rate of 150