Chapter 9 Flashcards
Contrary (or opposite) to the normal expected path of movement
Retrograde
Rhythms that are initiated in the area of the AV junction
Junctional rhythms
Initiate from a single site in the AV junction and arise earlier than the next anticipated complex of the underlying rhythm
Premature Junctional rhythms (PJCs)
The pause that occurs after an ectopic beat, when the SA node is depolarized
Noncompensatory pause
A pause that occurs after an ectopic beat in which the SA node is unaffected and the cadence of the heart is uninterrupted
Compensatory pause
When the SA node fails to generate an impulse or if the rate of impulse generation falls below that of the AV node, then the AV node will assume the role of the pacemaker
Junctional escape rhythm
Increased Automaticity in the AV junction to discharge impulses at a rate faster than it’s increased rate
Accelerated Junctional rhythm
When the Junctional firing rate exceeds 100 BPM
Junctional tachycardia
Rhythm arising from the AV Junctional tissue at a rate of 100 to 180 BPM
Junctional tachycardia rhythm
Rhythm observed to start or end abruptly
Paroxysmal rhythm
A Junctional tachycardia rhythm that is observed to begin or end abruptly
Paroxysmal Junctional tachycardia rhythm (PJT)