Term
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Definition
JUNCTIONAL RHYTHM
Rate: 40 - 60 BPM
Rhythm: Very Regular
P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR
PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval
QRS Complex: Usually 0.10 sec or less unless it is aberrantly conducted or an intraventricular conduction delay exists.
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Term
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Definition
JUNCTIONAL BRADYCARDIA
Rate: Les than 40 BPM
Rhythm: Regular
P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR
PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval
QRS Complex: Usually 0.10 sec or less unless it is aberrantly conducted or an intraventricular conduction delay exists. |
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Term
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Definition
ACCELERATED JUNCTIONAL RHYTHM
Rate: Greater than 60 BPM
Rhythm: Regular
P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR
PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval
QRS Complex: Usually 0.10 sec or less unless it is aberrantly conducted or an intraventricular conduction delay exists. |
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Term
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Definition
JUNCTIONAL TACHYCARDIA
Rate: 101 - 180 BPM
Rhythm: Regular
P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR
PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval
QRS Complex: Usually 0.10 sec or less unless it is aberrantly conducted or an intraventricular conduction delay exists. |
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Term
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Definition
PREMATURE JUNCTIONAL COMPLEX
Rate: Usually WNL but depends on the underlying rhythm
Rhythm: Regular with premature beats
P Waves: May occur before, during, or after the QRS; if visible, the P wave is inverted in leads II, III, and AVR
PR Interval: If a P wave occurs before the QRS, the PR interval will usually be 0.12 sec or less; if no P wave occurs before the QRS, there will be no PR interval
QRS Complex: Usually 0.10 sec or less unless it is aberrantly conducted or an intraventricular conduction delay exists. |
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