Question

identify this rhythm

ventricular paced with failure to capture
av paced
sinus bradycardia
atrial paced with failure to capture

Explanation:

Analyze the ECG strip for pacemaker spikes

The ECG strip shows sharp, vertical spikes (pacemaker spikes) preceding some of the QRS complexes. Specifically, the first two spikes are followed immediately by wide, bizarre QRS complexes, indicating successful ventricular capture.

Identify pacemaker malfunctions

Following the second captured beat, there are several sharp pacemaker spikes visible on the strip (e.g., the third, fifth, and seventh spikes) that are not followed by any QRS complex or myocardial depolarization. This represents a failure of the electrical stimulus to depolarize the ventricles.

Determine the rhythm classification

The presence of ventricular pacemaker spikes that fail to elicit a corresponding QRS complex confirms a ventricular pacing mechanism with intermittent failure to capture.

Answer:

• Ventricular paced with failure to capture (Correct answer)
• AV paced
• Sinus Bradycardia
• Atrial Paced with failure to capture