441 results
Left Anterior Fascicular Block on EKG
 • Left axis deviation (LAD) (-45 degrees to -90 degrees)
in leads I and aVL ... leads II, Ill, aVF ... cardiology #EKG #ECG #Electrocardiogram
Normal Sinus Rhythm - ECG Diagnosis
Normal sinus rhythm (NSR) is an impulse that originates in the
leads I, II and aVF ... • inverted in aVR ... leads III and aVL ... diagnosis #ekg #ecg #electrocardiogram
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
in II, Ill and aVF ... diagnosis #ekg #ecg #electrocardiogram
Phasic Sinus Arrhythmia - ECG Diagnosis
 • The rate increases with respiration and decreases with expiration.
increases (II, Ill and aVF ... diagnosis #ekg #ecg #electrocardiogram
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
is positive in aVR ... negative in I + aVF ... (> 160ms) - AV ... cardiology #diagnosis #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
increases (II, Ill and aVF ... the presence of AV ... diagnosis #ekg #ecg #electrocardiogram
Pulmonary Embolism on ECG 

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
leads (II, III, AVF ... Embolism #ECG #EKG #Electrocardiogram
Progression of EKG changes in Acute Coronary Syndrome (ACS)
Hyperacute T waves:
 • Broad-based and symmetrical, usually
normally inverted in aVR ... In leads l, I, aVL ... , aVF, or V4-V6 ... Progression #diagnosis #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
increases (II, Ill and aVF ... the presence of AV ... diagnosis #ekg #ecg #electrocardiogram
Benign T-wave Inversion (BTWI) vs. Wellens'
 • Usually in leads V3-V6 (vs. V2-V4 in Wellens'), but
leads (II/III/aVF ... diagnosis #cardiology #electrocardiogram