An Access field property that limits the number of characters that can be typed into a text or number field. Foreign key. A field in one table that is also the primary key of a second table; it is used to create a relationship with that table.
burst pacing. Also found in: Dictionary, Thesaurus, Wikipedia. fast pacing. A term defined in the context of implantable pacemakers for the deliveryâe.g., atrial burst pacingâof rapid, multiple electrical pulses, to pace the heart faster than its intrinsic rate. Fast pacing is used for ventricular tachycardia, to try to break the tachycardia before it progresses to ventricular fibrillation. burst pacing.
No p-wave occurs so the pacer fires the atrial pacing wire causing a pacer spike on the EKG. The pacer then waits the programmed amount of time to see a QRS. If no QRS occurs the ventricular pacing wire is activated and a paced QRS occurs. At any point in the process the heart can kick in with it own beat and inhibit the pacer. It sounds like in this person the pacer is firing for the SA node and his own rythmn responds and carries through with the rest of the beat.