Ventricular Rhythms

Question 1

Premature Ventricular Complex (PVC)

Answer 1

Early Beat w/ Underlying Rhythm
Rate: Varies
P Wave: Not seen (Usually)
PRI: N/A
QRS: >0.12
T Wave: Opposite QRS

Most common early beat
Unifocal & Multifocal

Question 2

Agonal Rhythm

Answer 2

Irregular
Rate: <20
P Wave: None
PRI: N/A
QRS: >0.12
T Wave: Opposite QRS

Can produce a pulse, 50/50 chance
Cardiac Arrest Treatment, CPR

Question 3

Idioventricular Rhythm

Answer 3

Regular
Rate: 20-40
P Wave: None
PRI: N/A
QRS: >0.12
T Wave: Opposite QRS

Can produce a pulse, most likely ineffective

Question 4

Accelerated Idioventricular Rhythm (AIVR)

Answer 4

Regular can be a bit irregular
Rate: 40-100
P Wave: Not seen
PRI: N/A
QRS: >0.12
T Wave: Opposite QRS

May or may not have a pulse

Question 5

Ventricular Tachycardia

Answer 5

Usually regular but can be a bit irregular
Rate: >100
P Wave: None usually, dissociated if present
PRI: Variable if P wave present
QRS: >0.12
T Wave: Opposite QRS

If associated, p wave most likely wide QRS sinus rhythm

Question 6

Torsades de Pointes

Answer 6

Regular or Irregular
Rate: >200
P Wave: None
PRI: N/A
QRS: >0.12
T Wave: NOt seen

Looks like a radio wave, almost rhythmic
Could or could not have a pulse

Question 7

Ventricular Fibrillation

Answer 7

N/A
Rate: Can’t be counted
P Wave: None
PRI: N/A
QRS: >0.12
T Wave: None

No pulse irratic