EKG week 7 & 8 Hypertrophy & Arrhythmias
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| left atrial hypertrophy | Myocardium thickens Shows on V1 biphasic pwave
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| biphasic | pwave has both positive and negative
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| right atrial hypertrophy | atrium is thickened lead 2 peaked pwave
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| biatrial hypertrophy | when both happen biphasic pwave V1 and peaked pwave lead 2
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| premature atrial contractions | shorter R-R - longer R-R a beat comes premature
with a rhythm*
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| nonconducted premature atrial contractions | pwave without a QRS
long R-R is call: "Cause for the Pause" with rhythm*
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| paroxysmal atrial tachycardia | PAT=SVT supraventrical tachycardia
starts and stops quickly
rate 150bpm won't see pwave they are there but hidden
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| atrial flutter | SA not firing, any rate, NO PWAVE
flutter waves are saw toothed
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| atrial fibrillation | irregularly irregular NO PWAVE any rate, QRS normal
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| wandering atrial pacemaker | pwaves are all different shapes and sizes. rhythm regular or slightly irregular
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| left bundle branch block | only on V1 the QRS is wide .12 or greater & 99% NEGATIVE
V2 can not know right or left BBB
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| right bundle branch block | on V1 QRS is wide .12 or greater and POSITIVE has rwaves
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| premature ventricular contraction | no pwave, wide QRS, will have normal sinus rhythm 1 or 2 beats will have short R-R - long R-R
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| bigeminal | every other beat is a PVC
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| trigeminal | every third beat is a PVC
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| couplet | 2 PVC in a row (paired)
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| triplet | 3 PVC in a row
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| 4 PVC or more | a run of ventricular tachycardia
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| unifocal | all look a like
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| multifocal | all look different
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| ventricular tachycardia | Vtach 250bpm QRS.12-.22
pic pg199
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| ventricular fibrillation | Vfib chaotic rhythm NO QRS complex
pic pg 202
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| asystole | flatline
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| premature junctional contraction | short R-R - long R-R delay at AVnode
pwave can be negative, No pwave or pwave after QRS pic pg144
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| juctional rhythm | regular rhythm, rate 40-60bpm, pwave may or may not, PR interval short .08 QRS normal .04-.11
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| accelerated juntional | regular rhythm, rate 60-100bpm, pawave may or may not, PR interval short, QRS normal .04-.11
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| junctional tachycardia | regular rhythm, rate 100bpm or above, pawave may or may not, PR interval short, QRS normal .04-.11
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