ch 8 atrial rhythms
TRANSCRIPT
The ECG Course
Adam Thompson, EMT-‐P, BAS
Chapter 8 Atrial Rhythms
Atrial Rhythms
Atrial Rhythms
Ectopic Atrial Tachycardia
• Rate: 100 -‐ 180 bpm • Rhythm: Regular • P wave: Present, may be different w/ ectopy • P:QRS raHo: 1 to 1 • PR-‐interval: Normal, different w/ ectopy • QRS Width: < 120 ms (0.12 sec)
WAP/MAT
WAP/MAT
Wandering Atrial Pacemaker
• Rate: < 100 bpm • Rhythm: Irregularly-‐Irregular • P wave: At least 3 different morphologies • P:QRS raHo: 1 to 1 • PR-‐interval: Variable • QRS Width: < 120 ms (0.12 sec)
Multifocal Atrial Tachycardia
• Rate: > 100 bpm • Rhythm: Irregularly-‐Irregular • P wave: At least 3 different morphologies • P:QRS raHo: 1 to 1 • PR-‐interval: Variable • QRS Width: < 120 ms (0.12 sec)
WAP/MAT
WAP/MAT
Atrial Flutter
Atrial Flutter
• Rate: Atria (250-‐350), Ventricles (125-‐175) • Rhythm: Usually Regular • P wave: Saw toothed “F waves” • P:QRS raHo: Variable, 2:1 is common • PR-‐interval: Variable • QRS Width: < 120 ms (0.12 sec)
Atrial Flutter
Atrial Flutter
Atrial Flutter
Atrial Flutter
Atrial Fibrillation
Atrial Fibrillation
• Rate: Variable, depending on ventricles • Rhythm: Irregularly-‐Irregular • P wave: None, chaoHc atrial acHvity • P:QRS raHo: None • PR-‐interval: None • QRS Width: < 120 ms (0.12 sec)
Atrial Fibrillation
Atrial Fibrillation
Atrial Fibrillation
Atrial Fibrillation
