Exam 1 - Rhythms Flashcards
Rate - 60-100
Rhythm - Regular
P Wave - Present before each QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Normal Sinus Rhythm
Rate - Usually 60-100
Rhythm - Cyclically Irregular (Matched with Breath)
P Wave - Present before each QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Sinus Arrythmia
Rate - < 60
Rhythm - Regular
P Wave - Present before each QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Sinus Bradycardia
Rate - > 100
Rhythm - Regular
P Wave - Present before each QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Sinus Tachycardia
Rate - Any
Rhythm - Irregular
P Wave - Present, premature, abnormal in shape, still before QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
*Followed by a compensatory pause.
Premature Atrial Contraction (PAC)
Special pattern of PAC where every other beat is a PAC
Atrial Bigeminy
Rate - < 100
Rhythm - Irregular
P Wave - Present, 3 or more morphologies; still before QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Wandering Pacemaker
Rate - > 100
Rhythm - Irregular
P Wave - Present, 3 or more morphologies, still before QRS
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Multifocal Atrial Tachycardia (MAT)
Rate - Varies
Rhythm - Irregularly Irregular
P Wave - Fibriallary
PR Interval - Absent
QRS Complex - < 0.12s (Narrow)
Atrial Fibriallation
Rate - 150-250
Rhythm - Regular
P Wave - Appears “Absent”
PR Interval - Tough to Identify
QRS Complex - < 0.12s (Narrow)
Paroxysmal Supraventricular Tachycardia
or
Atrioventricular Nodal Re-entry Tachycardia
Rate - 40-60
Rhythm - Regular
P Wave - Absent, Retrograde, Inverted
PR Interval - < 0.20s (< 5 little boxes)
QRS Complex - < 0.12s (Narrow) or > 0.12s (Wide)
Junctional Rhythm
Rate - 60-100
Rhythm - Regular
P Wave - Absent, Retrograde, Inverted
PR Interval - < 0.20s (< 5 little boxes)
QRS Complex - < 0.12s (Narrow)
Accelerated Junctional Rhythm
Rate - 101-150
Rhythm - Regular
P Wave - Absent, Retrograde, Inverted
PR Interval - < 0.20s (< 5 little boxes)
QRS Complex - < 0.12s (Narrow)
Junctional Tachycardia
It may be hard to distinguish the difference between Junctional Tachycardia and PSVT/ANVRT.
Rate - 20-40
Rhythm - Regular
P Wave - Absent
PR Interval - N/A
QRS Complex - > 0.12s (Wide)
Idioventricular Rhythm (IVR)
Rate - > 40
Rhythm - Regular
P Wave - Absent
PR Interval - N/A
QRS Complex - > 0.12s (Wide)
Accelerated Idioventricular Rhythm (AIVR)
Rate - Any
Rhythm - Irregular
P Wave - Absent before PVC
PR Interval - N/A
QRS Complex - > 0.12 (Early, Wide, Bizarre)
Premature Ventricular PVC
Single PVC; NSR w/ Isolated PVC at Beat X
Isolated PVC
NSR w/ 2 Multifocal PVCs at Beat X, Y
NSR w/ 2 Multifocal Beats at X, Y
NSR w/ 3 Multifocal PVCS at Beat X, Y, Z
NSR w/ 3 Multifocal Beats at X, Y, Z
Every other beat is a PVC
Ventricular Bigeminy
Every third beat is a PVC
Ventricular Trigeminy
Every fourth beat is a PVC
Ventricular Quadreminy
Two PVCs in a row
Ventricular Couplet
Three PVCs in a row
Ventricular Triplet (Salvo)
Rate - > 100
Rhythm - Regular
P Wave - Absent
PR Interval - N/A
QRS Complex - > 0.12s (Wide)
Monomorphic Ventricular Tachycardia
Rate - > 300
Rhythm - Irregular
P Wave - Absent
PR Interval - N/A
QRS Complex - > 0.12s (Wide)
Polymorphic Ventricular Tachycardia
Rate - No True Rate (300-500)
Rhythm - Very Irregular
P Wave - Absent
PR Interval - N/A
QRS Complex - Fibrillary
Ventricular Fibrillation
Course V-Fib; Amplitude > 3mm
Fine V-Fib; Amplitude < 3mm
Rate - 60-100
Rhythm - Irregular
P Wave - Present before each QRS, the absence of a P-Wave leads to a 2-second or more arrest. Followed by an escape beat.
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Sinus Arrest with Sinus Block
Rate - ~ 60
Rhythm - Regular
P Wave - Present before each QRS
PR Interval - > 0.20s (> 5 little boxes)
QRS Complex - < 0.12s (Narrow)
“X” w/ 1st Degree AV Block
Rate - Varies
Rhythm - Regular, Irregular (2:1, 3:1 Block), Irregular Irregular (Variable Block)
P Wave - Present, “F-Wave” or “Saw Tooth” morphology
PR Interval - None
QRS Complex - < 0.12s (Narrow)
Atrial Flutter
Rate -
Rhythm -
P Wave -
PR Interval -
QRS Complex -
Isolated Beat
Rate - N/A
Rhythm - N/A
P Wave - Absent, Retrograde, Inverted followed by a compensatory pause.
PR Interval - < 0.20s (< 5 little boxes)
QRS Complex - < 0.12s (Narrow)
Premature Junctional Contraction (PJC)
Rate - Absent
Rhythm - Absent
P Wave - Absent or Present
PR Interval - 0.12-0.20s (3-5 little boxes)
QRS Complex - < 0.12s (Narrow)
Asystole
Rate - Underlying Rhythm
Rhythm - Irregular
P Wave - Present before each QRS
PR Interval - Gradually lengthening PR interval until a QRS complex is dropped.
QRS Complex - < 0.12s (Narrow)
2nd Degree AV Block: Type I
Rate - Underlying Rhythm
Rhythm - Irregular
P Wave - Present before each QRS
PR Interval - PR interval remains constant, but the intermittent dropping of QRS
QRS Complex - Usually > 0.12s (Wide)
2nd Degree AV Block: Mobitz Type II
Rate - A: 60-100 bpm; V: 40-60 bpm
Rhythm - R-R Interval is Regular
P Wave - Present P-P Interval Regular
PR Interval - No association between P and QRS
QRS Complex - Usually > 0.12s (Wide)
A: R-R Interval
V: P-P Interval
3rd Degree AV Block (Complete Heart Block)