Cardiology Flashcards
Sinus Rhythm
Rate - 60-100
Rhythm - regular
P wave - upright 1/QRS
PRI - .12 - .20
QRS - < .20
Sinus Bradycardia
Rate - less than 60
Rhythm - regular
P wave - upright 1/QRS
PRI - .12 - .20
QRS - < .12
Sinus tachycardia
Rate - 100 - 150
Rhythm - regular
P wave - upright 1/QRS
PRI - .12 - .20
QRS - < .12
Sinus Dysrhthmia
Rate - 60 - 100 or slower
Rhythm - irregular
P wave - upright 1/QRS
PRI - .12 - .20
QRS - < .12
The rate changes with respirations
Wandering Atrial Pacemaker
(WAP)
Rate - 60 - 100 or slower
Rhythm - slightly irregular
P wave - non-uniform 1 per QRS
PRI - can vary less than .20
QRS - < .12
3 or more p waves have differing shapes.
Multifocal Atrial Tachycardia
Rate - greater than 100
Rhythm - irregular
P wave - non-uniform with 3 different forms
PRI - varies
QRS - < .12
Similar to WAP, but faster and may look like A-FIB
Supraventricular Tachycardia
SVT
Rate - 150 - 250
Rhythm - regular
P wave - may be flat 1 per QRS
PRI - .12 - .20
QRS - < .12
P Waves can be hidden in T Waves
Atrial Flutter
Rate - (atrial - 300) (vent - varies)
Rhythm - usually regular
P wave - saw-tooth pattern
PRI - non
QRS - < .12
Constant or variable block = 3:1 or 4:1
Atrial Fibrillation
Rate - (atrial - irregular) ( vent - varies)
Rhythm - irregular
P wave - none
PRI - none
QRS - < .12
PSVT
Rate - 150-250
Rhythm - regular
P wave - buried
PRI - none
QRS - < .12
PAC
Rate - interrupts base rhythm
Rhythm - name underlying rhythm
P wave - differs from baseline rhythm
PRI - variable
QRS - no compensatory pause. Pri varies from base rhythm
Junctional Escape
Rate - 40 - 60
Rhythm - regular
P wave - inverted or missing
PRI - shortened or absent
QRS - < .12
P wave can appear before, during, or after QRS complex.
Accelerated junctional
Rate - 60 - 100
Rhythm - regular
P wave - inverted or missing
PRI - shortened or absent
QRS - < .12
P Wave can appear before, during, or after the QRS
Junctional Tachycardia
Rate - 100 - 180
Rhythm - regular
P wave - inverted or missing
PRI - shortened or absent
QRS - < .12
P Wave can appear before, during, or after the QRS
Premature Junctional Contraindication
(PJC)
Rate - interrupts base rhythm
Rhythm - name underlying rhythm
P wave - inverted or missing
PRI - shortened or absent
QRS - < .12
Possible compensatory pause with a normal QRS
1rst Degree Heart Block
(AV BLOCK)
Rate - name underlying rhythm
Rhythm - name underlying rhythm
P wave - upright 1/QRS
PRI - constant >.2
QRS - < .12
Name the underlying rhythm
2nd Degree Type I
Wenkebach
Rate - (atrial - normal) (vent-slow)
Rhythm - irregular
P wave - upright 1/QRS
PRI - lengthen
QRS - lengthens
Not all P Waves have a QRS
P Waves march out
3rd Degree Block
Rate - (Atrial - normal)
(Vent - <60)
Rhythm - (P -P regular)
(R - R regular)
P wave - upright 1/QRS
PRI - none
QRS - (junc - <.12) (vent - >.12)
P Waves march out but have no relationship to the QRS
2nd Degree Type II
Rate - (Atrial - normal)
(Ventricle - slow)
Rhythm - R - R can be regular or irregular. R/t conduction rate
P wave - upright 1/QRS
PRI - constant >.20
QRS - <.12
QRS may look wider than normal
Ventricular Tachycardia
Rate - 150 - 250
Rhythm - regular
P wave - none
PRI - none
QRS - >.12
QRS is wide and bizarre. “Praying Nuns”
Ventricular Fibrillation
Rate - none
Rhythm - none
P wave - none
PRI - none
QRS - none
Can be Course or Fine
Premature Ventricular Contraction
PVC
Rate - interrupts base rhythm
Rhythm - name underlying rhythm
P wave - none
PRI - none
QRS - >.12
Compensatory pause follows the wide QRS
Idioventricular
Rate - 20 - 40
Rhythm - regular
P wave - none
PRI - none
QRS - >.12
Usually an escape rhythm
Asystole
Rate - no activity
Rhythm - none
P wave - none
PRI - none
QRS - none
Confirm in Lead 2
Artificial Pacer
Rate - usually 60 - 100
Rhythm - normally regular
P wave - pacer spike
PRI - may not see with Ventricular Pacer
QRS - can vary >.12
Must check pulse to verify mechanical capture.
