This rhythm strip illustrates junctional tachycardia. Look for the following distinguishing characteristics:

• Rhythm: Atrial and ventricular—regular
• Rate: Atrial and ventricular—115 beats/min
• P wave: Inverted; follows QRS complex
• PR interval: Unmeasurable
• QRS complex: 0.08 second
• T wave: Normal
• QT interval: 0.36 second
• Other: None