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25 Cards in this Set
- Front
- Back
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RHYTHYM IN PREMATURE JUNCTIONAL CONTRACTIONS
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DEPENDS ON THE UNDERLYING RHYTHM; WILL USUALLY BE REGULAR EXCEPT FOR PJC'S
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RATE IN PREMATURE JUNCTIONAL CONTRACTIONS
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DEPENDS ON UNDERLYING RHYTHM
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P WAVES IN PREMATURE JUNCTIONAL CONTRACTIONS
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INVERTED, LOST IN QRS (ABSENT), OR FOLLOWING THE QRS COMPLEX AND INVERTED
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WHAT IS THE PRI IN PREMATURE JUNCTIONAL CONTRACTIONS?
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CAN ONLY BE MEASURED IF P WAVE PRECEDES THE QRS COMPLEX; IF MEASURABLE IT WILL BE LESS THAN .12 SECONDS
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WHEN WILL THE QRS IN A PREMATURE JUNCTIONAL CONTRACTION BE WIDE?
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WHEN IMPULSE IS FROM A LOW JUNCTION
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TREATMENT FOR PREMATURE JUNCTIONAL CONTRACTION
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DECREASE STIMULUS (CAFFIENE), BUT USUALLY NO TREATMENT
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DOES A JUNCTIONAL ESCAPE BEAT COME EARLY OR LATE?
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LATE
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WHICH IS MORE COMMON....ATRIAL OR JUNCTIONAL ESCAPE BEAT?
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JUNCTIONAL
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WHAT IS ANOTHER NAME FOR THE JUNCTIONAL ESCAPE RHYTHM?
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IDIOJUNCTIONAL RHYTHM
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DESCRIBE THE P WAVES IN JUNCTIONAL ESCAPE RHYTHM.
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INVERTED, LOST IN THE QRS (ABSENT), OR FOLLOWING THE QRS COMPLEX AND INVERTED
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DESCRIBE THE QRS IN JUNCTIONAL ESCAPE RHYTHM.
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LESS THAN .10 SECONDS, BUT WILL BE WIDE IF FROM LOW JUNCTION
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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)
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JUNCTIONAL ESCAPE RHYTHM
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IF A JUNCTIONAL ESCAPE RHYTHM CAUSES RETROGRADE ATRIAL DEPOLARIZATION, WHAT WILL THE P WAVES AND QRS LOOK LIKE?
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THE P WAVES WILL BE INVERTED AND THE QRS UPRIGHT
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WHAT IS THE RATE IN JUNCTIONAL ESCAPE RHYTHM
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40-60 BEATS PER MINUTE
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WHAT IS THE RHYTHM IN JUNCTIONAL ESCAPE RHYTHM?
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REGULAR
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WHAT IS THE ETIOLOGY OF JUNCTIONAL ESCAPE RHYTHM?
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INSULT TO/FAILURE OF THE SA NODE **, INCREASED VAGAL TONE ON SA NODE, HYPOXIA, DIGITALIS THERAPY (TOXICITY)
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SIGNS AND SYMPTOMS OF JUNCTIONAL ESCAPE RHYTHM.
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RATE RELATED PROBLEMS
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WHAT IS THE TREATMENT FOR JUNCTIONAL ESCAPE RHYTHM?
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TREAT THE UNDERLYING CAUSE; TREATE BRADYCARDIA---- DO NOT SUPPRESS JUNCTIONAL RHYTHMS AS THEY MAY BE PREVENTING ASYSTOLE
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WHAT IS THE RATE IN ACCELERATED JUNCTIONAL RHYTHM?
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60-100 BEATS PER MINUTE
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WHAT IS THE RESULT OF DIGITALIS TOXICITY?
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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
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ETIOLOGY OF ACCELERATED JUNCTIONAL RHYTHM
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ENHANCED AUTOMATICITY TO THE AV NODE AS A RESULT OF INSULT TO THE AV JUNCTION. DIGITALIS TOXICITY**, AND ACUTE MI
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WITH DIGITALIS TOXICITY, WHAT HAPPENS TO THE AUTO. FOCI OF THE ATRIA AND AV JUNCTION?
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THEY BECOME VERY IRRITABLE
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SIGNS AND SYMPTOMS OF ACCELERATED JUNCTIONAL RHYTHM.
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DEPENDS ON UNDERLYING CAUSE/RATE; USUALLY ASYMPTOMATIC
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WHAT IS THE RATE IN JUNCTIONAL TACHYCARDIA?
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100-180 BEATS PER MINUTE
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DESCRIBE THE P WAVE IN JUNCTIONAL TACHYCARDIA
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INVERTED, LOST IN THE QRS, OR FOLLOWING THE QRS COMPLEX AND INVERTED
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