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24 Cards in this Set
- Front
- Back
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sa node intrinsic rate
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60 - 100
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internodal junction intrinsic rate
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60 - 80
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av junction intrinsic rate
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40 - 60
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bundle of his intrinsic rate
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40 - 60
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purkinje cell intrinsic rate
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20 - 40
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normal pr interval
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.12 - .2 sec
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normal qrs duration
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<.1
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sinus bradycardia rate
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<60
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sinus tachycardia rate
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>100
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primary AV block
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PR > .2
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sinus arrhythmia
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slightly irregular rhythm (acordian like)
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SVT
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rate 150 - 250
regular rhythm qrs narrow |
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atrial flutter
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sawtooth pattern
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secondary av block (wenchebach)
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pr gets progressively longer until one P wave is blocked
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secondary av block (Mobitz II)
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pr intervals on conducted beats are equal
some p waves are blocked (missing QRS) |
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complete heart block
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no relationship between p waves and QRS
P-P intervals constant QRS-QRS intervals constant |
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atrial fibrillation
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no P waves
irregularly - irregular rhythm (no pattern) |
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junctional rhythm
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inverted or absent P waves
rate 40 - 60 |
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premature beats
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beats that occur earlier in the cycle than expected
named according to source of beat |
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escape beats
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beats that occur after long pauses of electrical activity
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ventricular tachycardia
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qrs >.12 sec
qrs bizarre shape rate of 150 - 250 |
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ventricular fibrillation
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random electrical discharge of ventricles with no mechanical output
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idioventricular rhythm
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purkinje cell discharge
wide bizarre qrs |
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agonal - asystole
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occasional spontaneous electrical activity
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