17 results
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • The cannon a wave ... activation from SVT (e.g ... 2LmUODZ #Cannon #AWaves ... diagnosis #cardiology #CVP
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
atrial tachycardia ECG ... • Variable P wave ... The change in P wave ... • Some P waves ... cardiology #diagnosis #ekg
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... EKG of the same ... rapid cannon a waves ... Hussainch #Cannon #Awaves ... #PhysicalExam #JVP
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
potassium and ECG ... Tall, "peaked" T waves ... mmol/l - Peaked T waves ... amplitude of P waves ... - Absence of T wave
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
3 different P wave ... hypertension Management ... • Oxygen • Treatment ... Cardiology #Diagnosis #ECG ... #EKG #Management
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
increases, the P wave ... decreases, the P wave ... : • The P wave ... The change in P wave ... cardiology #diagnosis #ekg
A wandering atrial pacemaker, (WAP), is an atrial arrhythmia that occurs when the natural cardiac pacemaker
identifiable on ECG ... changes in the P-wave ... smooth upright P waves ... or diphasic P-waves ... Clinical #MedStudent #EKG
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
increases, the P wave ... decreases, the P wave ... : • The P wave ... The change in P wave ... cardiology #diagnosis #ekg
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
non-conducted P wave ... Brady Management ... Non-conducted P waves ... summary #Diagnosis #EKG ... electrocardiogram #ecg
BRASH Syndrome

B - Bradycardia
R - Renal failure
A - AV nodal blockade
S - Shock
H - Hyperkalemia

Typical ECG
Hyperkalemia Typical ECG ... HR 30, peaked T waves ... flattening of P waves ... • Aggressive treatment ... Syndrome #diagnosis #management