Ventricular Arrythmias Flashcards by Ang A | Brainscape

Q

Premature ventricular contractions

A

Rate: that of underlying rhythm - dont count PVC

Rhythm: irregular

P wave: NONE

PR interval: NOT MEASURABLE

QRS: > .12 seconds

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Q

PVC Characteristics

A

Unifocal - each PVC looks the same

Multifocal - each PVC looks different

V. Bigeminy- every other beat is a PVC

V. Trigeminy- every third beat is a PVC

Ventricular couplets - pairs of PVCs (unifocal or multifocal)

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Q

Ventricular tachycardia

A

Rate: 140-250 bpm

Rhythm: regular

P wave: NONE

PR interval: NONE

QRS: > .12 seconds

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Q

Ventricular fibrillation

A

Rate: NONE

Rhythm: chaotic

P wave: none

PR interval: none

QRS: none

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Q

Idioventricular rhythm

A

Rate: 20-40 bpm

Rhythm: regular

P wave: none

PR interval: none

QRS: >.12 seconds

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Q

Accelerated idioventricular rhythm

A

Rate: 40-100 bpm

Rhythm: regular

P wave: none

PR interval: none

QRS: >.12 seconds

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Q

Asystole

A

Rate: none

Rhythm: none

P wave: none

PR interval: none

QRS: none

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Q

Ventricular standstill

A

Rate: none

Rhythm: none

P wave: present

PR interval: none

QRS: none

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