Question

identify this rhythm

atrial pacing
av (dual) pacing with undersensing, notify chain of command, rn, charge, provider, prepare for 12-lead, probable pacemaker interrogation
ventricular pacing
av pacing

Explanation:

Analyze the ECG tracing spikes

$$ \text{Spike 1: Precedes the P wave (atrial pacing spike)} $$

$$ \text{Spike 2: Precedes the QRS complex (ventricular pacing spike)} $$

Identify the pacing mode

$$ \text{Presence of both atrial and ventricular spikes} \implies \text{AV (dual-chamber) pacing} $$

Evaluate for pacemaker malfunction

$$ \text{Third QRS complex is intrinsic/PVC with an asynchronous ventricular pacing spike landing on its T-wave} \implies \text{Undersensing} $$

Answer:

• Atrial pacing
• AV (dual) pacing with undersensing, notify chain of command, RN, Charge, provider, prepare for 12-lead, probable pacemaker interrogation (Correct answer)
• Ventricular pacing
• AV pacing