211705
Ventricular Rhythm
- early depolarization
begins in the ventricle instead
of the sinus node
- causes: abnormal levels of electrolytes (dec
potassium/magnesium), use of diuretics, toxins,
stimulants (coffee, nicotine, cocaine), infection
- Occurs in normal, healthy individuals no tx
necessary if asymptomatic. tx depends on
cause
- SIGNIFICANT PVCs: more than 6
PVCs in a min, multifocal, paired
couplet PVCs, R on T PVCs, PVCs
that are in runs of 3
- Tx: antiarrhythmic
meds bc of high risk of v
tach and v fib
- Tx: antiarrhythmic
meds bc of high risk of v
tach and v fib
- SIGNIFICANT PVCs: more than 6
PVCs in a min, multifocal, paired
couplet PVCs, R on T PVCs, PVCs
that are in runs of 3
- Occurs in normal, healthy individuals no tx
necessary if asymptomatic. tx depends on
cause
- PVC
- multifocal: looks
different
- unifocal: looks the same
- unifocal: looks the same
- ventricular bigeminy:
PVCs every other beat
- trigeminy: PVCs every
3 beats
- quadrigeminy:
PVCs every 4
beats
- quadrigeminy:
PVCs every 4
beats
- trigeminy: PVCs every
3 beats
- couplet: PVCs that
occur in pairs
- multifocal: looks
different
- Tests:
electrocardiogram,
cardiac cath,
electrophysiology testing
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