21 results
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
new/old infarct STEMI ... • DDx: Acute STEMI ... diffuse STE, diffuse PR ... EKG #diagnosis #electrocardiogram ... #Equivalents #Interpretation
ECG Cheat Sheet

ECG rapid view: It is organized roughly how one would typically read an ECG.
ventricle), Intervals (PR ... Cheatsheet #Cribsheet #Electrocardiogram ... Diagnosis #Reference #Interpretation
Hypothermia on EKG
 • J (Osborn) waves
 • PR, QRS, and QT prolongation
 • Various bradyarrythmias
Osborn) waves • PR ... bradyarrythmias (e.g. sinus ... waves #EKG #ECG #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... Arrhythmia Phasic Sinus ... Non-phasic Sinus ... The P wave and PR ... diagnosis #ekg #ecg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
DANGER (2) Sinus ... Regular (1) Sinus ... block 1º - long PR ... successively longer PR ... EKG #diagnosis #electrocardiogram
WPW EKG after cardioversion of SVT

Here is the post-conversion ECG

The patient is now in Sinus Rhythm,
patient is now in Sinus ... The PR interval ... WPW #EKG #ECG #Electrocardiogram
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
look like the sinus ... PAC will have a PR ... diagnosis #ekg #ecg #electrocardiogram
Hyperkalemia on EKG
"Mild" Hyperkalemia
 • Peaked, narrow-based T Waves
 • Double counting of HR by EKG
QRS widening • Sinus ... waves • Pseudo-STEMI ... Hyperkalemia #EKG #ECG #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... • PR interval < ... Block Type I - PR ... AmyChung #EKG #Interpretation ... #ECG #Electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... Arrhythmia Phasic Sinus ... Non-phasic Sinus ... The P wave and PR ... diagnosis #ekg #ecg #electrocardiogram