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25 Cards in this Set

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RHYTHYM IN PREMATURE JUNCTIONAL CONTRACTIONS
DEPENDS ON THE UNDERLYING RHYTHM; WILL USUALLY BE REGULAR EXCEPT FOR PJC'S
RATE IN PREMATURE JUNCTIONAL CONTRACTIONS
DEPENDS ON UNDERLYING RHYTHM
P WAVES IN PREMATURE JUNCTIONAL CONTRACTIONS
INVERTED, LOST IN QRS (ABSENT), OR FOLLOWING THE QRS COMPLEX AND INVERTED
WHAT IS THE PRI IN PREMATURE JUNCTIONAL CONTRACTIONS?
CAN ONLY BE MEASURED IF P WAVE PRECEDES THE QRS COMPLEX; IF MEASURABLE IT WILL BE LESS THAN .12 SECONDS
WHEN WILL THE QRS IN A PREMATURE JUNCTIONAL CONTRACTION BE WIDE?
WHEN IMPULSE IS FROM A LOW JUNCTION
TREATMENT FOR PREMATURE JUNCTIONAL CONTRACTION
DECREASE STIMULUS (CAFFIENE), BUT USUALLY NO TREATMENT
DOES A JUNCTIONAL ESCAPE BEAT COME EARLY OR LATE?
LATE
WHICH IS MORE COMMON....ATRIAL OR JUNCTIONAL ESCAPE BEAT?
JUNCTIONAL
WHAT IS ANOTHER NAME FOR THE JUNCTIONAL ESCAPE RHYTHM?
IDIOJUNCTIONAL RHYTHM
DESCRIBE THE P WAVES IN JUNCTIONAL ESCAPE RHYTHM.
INVERTED, LOST IN THE QRS (ABSENT), OR FOLLOWING THE QRS COMPLEX AND INVERTED
DESCRIBE THE QRS IN JUNCTIONAL ESCAPE RHYTHM.
LESS THAN .10 SECONDS, BUT WILL BE WIDE IF FROM LOW JUNCTION
WHAT RHYTHM? --- ABSENT PACING STIMULUS FORM ABOVE, THE AUTO FOCUS IN THE AV JUNCTION MAY ESCAPE OVERDRIVE SUPPRESSION AND BECOME THE INHERENT PACEMAKER (SA NODE DOES NOT TAKE BACK OVER AFTER ITS FIRST MISSED BEAT)
JUNCTIONAL ESCAPE RHYTHM
IF A JUNCTIONAL ESCAPE RHYTHM CAUSES RETROGRADE ATRIAL DEPOLARIZATION, WHAT WILL THE P WAVES AND QRS LOOK LIKE?
THE P WAVES WILL BE INVERTED AND THE QRS UPRIGHT
WHAT IS THE RATE IN JUNCTIONAL ESCAPE RHYTHM
40-60 BEATS PER MINUTE
WHAT IS THE RHYTHM IN JUNCTIONAL ESCAPE RHYTHM?
REGULAR
WHAT IS THE ETIOLOGY OF JUNCTIONAL ESCAPE RHYTHM?
INSULT TO/FAILURE OF THE SA NODE **, INCREASED VAGAL TONE ON SA NODE, HYPOXIA, DIGITALIS THERAPY (TOXICITY)
SIGNS AND SYMPTOMS OF JUNCTIONAL ESCAPE RHYTHM.
RATE RELATED PROBLEMS
WHAT IS THE TREATMENT FOR JUNCTIONAL ESCAPE RHYTHM?
TREAT THE UNDERLYING CAUSE; TREATE BRADYCARDIA---- DO NOT SUPPRESS JUNCTIONAL RHYTHMS AS THEY MAY BE PREVENTING ASYSTOLE
WHAT IS THE RATE IN ACCELERATED JUNCTIONAL RHYTHM?
60-100 BEATS PER MINUTE
WHAT IS THE RESULT OF DIGITALIS TOXICITY?
HAS PARASYMPATHETIC EFFECT; SLOWS SA NODE PACING RATE; CONDUCTION THROUGH AV NODE SLOWS; ALSO INHIBITS AV NODE'S RECEPTIVENESS TO MULTIPLE STIMUI SO FEWER REACH THE VENTRICLES
ETIOLOGY OF ACCELERATED JUNCTIONAL RHYTHM
ENHANCED AUTOMATICITY TO THE AV NODE AS A RESULT OF INSULT TO THE AV JUNCTION. DIGITALIS TOXICITY**, AND ACUTE MI
WITH DIGITALIS TOXICITY, WHAT HAPPENS TO THE AUTO. FOCI OF THE ATRIA AND AV JUNCTION?
THEY BECOME VERY IRRITABLE
SIGNS AND SYMPTOMS OF ACCELERATED JUNCTIONAL RHYTHM.
DEPENDS ON UNDERLYING CAUSE/RATE; USUALLY ASYMPTOMATIC
WHAT IS THE RATE IN JUNCTIONAL TACHYCARDIA?
100-180 BEATS PER MINUTE
DESCRIBE THE P WAVE IN JUNCTIONAL TACHYCARDIA
INVERTED, LOST IN THE QRS, OR FOLLOWING THE QRS COMPLEX AND INVERTED