Rhythm Description Flashcards
Rate: 60-100
Rhythm: Regular
P wave: Normal with 1:1 conduction
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Normal Sinus Rhythm
Rate: < 60
Rhythm: Regular
P wave: Normal with 1:1 conduction
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sinus Bradycardia
Rate: 101 - 150
Rhythm: Regular
P wave: Normal with 1:1 conduction
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sinus Tachycardia
Rate: Usually 60-100
Rhythm: Irregular
P wave: Normal with 1:1 conduction
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sinus Arrhythmia
Rate: Varies, depending on number of missing beats (more that 1 at a time)
Rhythm: Regular or irregular. Rhythm does not pick up in same spot after missing beats.
P wave: Normal with 1:1 conduction when present. Not present during missing beats
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sinus Arrest
Rate: Varies, depending on number of missing beats.
Rhythm: Regular or irregular Rhythm picks up in same spot after missing beat(s)
P wave: Normal with 1:1 conduction when present. Not present during missing beats
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sinus Block
Rate: Varies, depending on number of missing beats (only 1 at a time)
Rhythm: Regular or irregular. Rhythm does not pick up in same spot after missing beat.
P wave: Normal with 1:1 conduction when present. Not present during missing beats
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sinus Pause
Rate: Extremely variable. Wild swings from bradycardia to tachycardia and back.
Rhythm: Irregular
P wave: Normal with 1:1 conduction
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Sick Sinus Syndrome
Rate: Usually 60-100
Rhythm: Slightly irregular
P wave: Morphology changes from beat to beat; P waves may disappear entirely. At least 3 different forms
PRI: Varies
QRS: < 0.12 seconds
Wandering Atrial Pacemaker
Rate: > 100
Rhythm: Irregular
P wave: Morphology changes from beat to beat; P waves may disappear entirely. At least 3 different forms
PRI: Varies
QRS: Varies
Multifocal Atrial Tachycardia
Rate: Variable
Rhythm: Irregular
P wave: Underlying P is normal
P with ectopy is abnormal in appearance
PRI: Normal with both
QRS: < 0.12 seconds in both
Sinus With PAC
Rate: > 151
Rhythm: Regular. Observed going into this rhythm
P wave: May be non-discernable
PRI: Usually not measurable
QRS: < 0.12 seconds
PSVT
Rate: > 151
Rhythm: Regular
P wave: May be non-discernable
PRI: Usually not measurable
QRS: < 0.12 seconds
Supra Ventricular Tachycardia
Rate: Variable
Rhythm: Regular
P wave: F waves
PRI: 0.12 – 0.20 seconds
QRS: < 0.12 seconds
Atrial Flutter
Rate: Variable
Rhythm: Irregularly irregular
P wave: Nondiscernable
PRI: Not measurable
QRS: < 0.12 seconds
Atrial Fibrillation
Rate: Variable
Rhythm:Regular
P wave: Normal 1:1 conduction
PRI: > 0.20 seconds
QRS: < 0.12 seconds
1st Degree Heart Block
Rate: Atrial: Regular
Ventricular: R-R irregular
Rhythm: Regularly Irregular
P wave: Present and normal, more P waves than QRS complexes
PRI: Progressively lengthens (0.14 – 0.32)
QRS: < 0.12 seconds
2nd Degree AV Block Type I
Rate: Atrial: Regular
Ventricular: R-R regular when QRS is present
Rhythm: Regular
P wave: Present and normal, more P waves that QRS complexes
PRI: Constant with conducted beats
QRS: < 0.12 seconds
2nd Degree AV Block Type II
Rate: Atrial: Normal
Ventricular: Normal
Rhythm: Regular (P-P and R-R)
P wave: Present, but not related to QRS
PRI: Not measurable
QRS: > 0.12 seconds
3rd Degree AV Block
Rate: 60-100
Rhythm: Irregular
P wave: Normal in underlying rhythl
not present in ectoy
PRI: 0.12 – 0.20 in underlying rhythm
Not present in ectopy
QRS: < 0.12 seconds
Sinus with PJC
Rate: 40-60
Rhythm: Regular
P wave: Inverted before, after, or during the QRS if present.
PRI: Variable or not measurable
QRS: < 0.12 seconds
Junctional Escape Rhythm
Rate: < 40
Rhythm: Regular
P wave: Inverted before, after or during the QRS if present
PRI: Variable or not measurable
QRS: < 0.12 seconds
Junctional Bradycardia
Rate: 61-100
Rhythm: Regular
P wave: Inverted before, after or during the QRS if present
PRI: Variable or not measurable
QRS: < 0.12 seconds
Accelerated Junctional Rhythm
Rate: >100
Rhythm: Regular
P wave: Inverted before, after or during the QRS if present
PRI: Variable or not measurable
QRS: < 0.12 seconds
Junctional Tachycardia
Rate: 15-40
Rhythm: Regular
P wave: None
PRI: Not measurable
QRS: Bizarre in appearance and > 0.12 seconds
Ventricular Escape Rhythm IVR
Rate: 41-100
Rhythm: Regular or slightly irregular
P wave: None
PRI: Not Measurable
QRS: Bizarre in appearance and > 0.12 seconds
Accelerated Idioventricular
Rate: 60-100
Rhythm: Irregular
P wave: Normal in underlying rhythm
Absent in ectopy
PRI: 0.12 – 0.20 in underlyng rhythm
Not present in ectopy
QRS: > 0.12 in underlying rhythm
Ectopy is Bizarre in appearance and > 0.12 seconds
Sinus Rhythm with PVC
Rate: 101-250
Rhythm: Regular or slightly irregular
P wave: None
PRI: Not measurable
QRS: Bizarre in appearance and > 0.12 seconds
Ventricular Tachycardia
Rate: 250 or higher
Rhythm: Irregular
P wave: None
PRI: Not measurable
QRS: Bizarre in appearance and > 0.12 seconds. QRS height changes between tall and shirt in a fairly regular inverval.
Torsades De Pointes
Rate: 0
Rhythm: Chaotic electrical activity
P wave: None
PRI: None
QRS: None identifiable
Ventricular Fibrillation
Rate: 0
Rhythm: 0
P wave: None
PRI: Not measurable
QRS: None
Asystole
Rate: <15
Rhythm: Irregular
P wave: May or may not be present
PRI: May not be measurable
QRS: Dependent on ectopic beat
Agonal
Rate: Variable
Rhythm: Regular
P wave: Normal with 1:1 conduction
PRI: < 0.12 seconds
QRS: > 0.12 seconds with Delta wave
Wolfe Parkinson White Syndrome
Rate: Atrial: 60-100
Ventricular: 0
Rhythm: P-P regular
P wave: Normal and upright
PRI: Not measurable
QRS: None
P Wave Asystole
