97 results
Canon A waves in a patient with AV dissociation

Occurs due to the simultaneous contraction of atria
Canon A waves in ... a patient with AV ... contraction of atria ... #waves #AV #dissociation ... neck #cardiology #Canon
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
Cannon A Waves ... • Caused by atrial ... , it indicates AV ... dissociation + retrograde atrial ... activation from SVT (e.g
Inverted P Waves:
(A) Ectopic atrial rhythm
(B) Junctional rhythm 

#Inverted #PWaves #cardiology #diagnosis #ekg #ecg #electrocardiogram #differential
Inverted P Waves ... : (A) Ectopic atrial ... #Inverted #PWaves ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms = AV ... origin within the atria ... (e.g. ectopic atrial ... Morphology = multifocal atrial ... • Saw-Tooth = Atrial
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Wenckebach) P waves ... non-conducted P wave ... always within the AV ... Diagnosis #Cardiology #EKG ... #ECG #Electrocardiogram
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
• P wave morphology ... • Inverted P waves ... maybe mistaken as AV ... Customary to call AV ... #ecg #electrocardiogram
Counterclockwise and (Left) vs Clockwise (Right) Flutter
Typical atrial flutter is counterclockwise in direction and originates from
negatively-directed flutter waves ... positively-directed flutter waves ... appearance on ECG ... to the flutter waves ... #Diagnosis #ECG
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
- Decreases AV ... conduction Uses: - Atrial ... fibrillation and atrial ... or biphasic T waves ... Cardiology #Digitalis #ECG
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial ... complex (PAC) - ECG ... originating the low atrium ... PACs #premature #atrial ... #ecg #electrocardiogram
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Cannon A Waves on ... Examination Cannon a waves ... AV dissociation ... : 3rd deg AV block ... for DDI and an atrial