Final answer:
The dysrhythmia that originates in the AV junction with a ventricular rate between 61 to 100 beats/min is called accelerated junctional rhythm.
Step-by-step explanation:
The dysrhythmia that originates in the AV junction with a ventricular rate between 61 to 100 beats/min is called accelerated junctional rhythm. In this condition, the electrical impulses in the heart are generated from the AV node instead of the sinoatrial (SA) node, resulting in a slightly faster heart rate than normal but within the normal range. The AV node acts as a backup pacemaker when the SA node fails to generate electrical signals.
Accelerated junctional rhythm can occur in different situations such as heart diseases, medications, infections, or electrolyte imbalances. It may or may not cause symptoms, but if present, symptoms can include palpitations, lightheadedness, or feeling a pause between heartbeats.
If an ECG is performed, it will show normal QRS complexes with a slightly shorter PR interval compared to normal sinus rhythm. Treatment depends on the underlying cause, if any, and may include addressing the underlying condition or adjusting medications.