Final answer:
An EKG tech should expect a wide QRS complex after the pacing spike in a patient with a ventricular pacemaker, reflecting the direct stimulation of the ventricles which bypasses the heart's natural conduction system.
Step-by-step explanation:
When an EKG technician is reviewing a tracing for a patient with a ventricular pacemaker, they should expect to see a wide QRS complex following the pacing spike. A ventricular pacemaker directly stimulates the ventricles, causing them to contract and thereby bypassing the heart's natural conduction system. This direct stimulation does not affect the atria, so regular P waves ('1. regular p waves') are not expected to be seen immediately after the pacing spike.
Additionally, while a normal AV delay is between .12 to .16 seconds ('2. AV delay between .12 and .16 secs'), this is not relevant for a ventricular-paced rhythm. Likewise, the duration of the QRS complex in a naturally occurring ventricular depolarization is typically between .6 to .10 seconds ('3. QRS interval between .6 and .10 secs'), but in the case of a ventricular pacemaker, the QRS complex is expected to be wide due to the abnormal depolarization pathway.