Accelerated Junctional Escape Rhythm is defined by which rate?

Accelerated Junctional Escape Rhythm is defined by which rate?

• A. Rate >60 bpm
• B. Rate 40-60 bpm
• C. Rate <40 bpm
• D. Rate 100-120 bpm

Answer: (A)

When the SA node isn’t driving the heart, the AV node can take over as a pacemaker. The normal junctional escape rhythm runs about 40–60 beats per minute. If the rate rises above 60 beats per minute but isn’t fast enough to be called a tachycardia, that’s an accelerated junctional rhythm. The key feature you’re looking for is a rate greater than 60 bpm (often up to about 100 bpm), with the usual pattern of P waves that may be inverted, occur after the QRS, or be hidden, depending on atrial conduction. So the defining rate is more than 60 beats per minute.

When the SA node isn’t driving the heart, the AV node can take over as a pacemaker. The normal junctional escape rhythm runs about 40–60 beats per minute. If the rate rises above 60 beats per minute but isn’t fast enough to be called a tachycardia, that’s an accelerated junctional rhythm. The key feature you’re looking for is a rate greater than 60 bpm (often up to about 100 bpm), with the usual pattern of P waves that may be inverted, occur after the QRS, or be hidden, depending on atrial conduction. So the defining rate is more than 60 beats per minute.