23 results
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
JTc=QTc-QRS When ... with QRS ≥120 ms ... #electrocardiogram ... pathophysiology #ekg ... #ecg #cardiology
REBEL Review 100: Canadian Syncope Risk Score 

Predisposition to Vasovagal Symptoms (-1)
History of Heart Disease (1)
Any
REBEL Review 100: Canadian ... QRS Duration 130 ms ... (1) Corrected QT ... Interval > 480 ms ... stratification #diagnosis
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms ... interval ≥ 120 ms ... waves: > 40 ms ... #Electrocardiogram ... #cardiology #diagnosis
Accelerated Idioventricular Rhythm (AIVR) on EKG
 • Regular rhythm with wide. 
 • QRS complexes >120
Rhythm (AIVR) on EKG ... complexes >120 ms ... #Rhythm #AIVR #diagnosis ... #cardiology #EKG ... #ECG #Electrocardiogram
Hypothermia on EKG
 • J (Osborn) waves
 • PR, QRS, and QT prolongation
 • Various bradyarrythmias
Hypothermia on EKG ... • PR, QRS, and QT ... bradyarrythmias (e.g ... #ECG #electrocardiogram ... #cardiology #diagnosis
ECG Cheat Sheet

ECG rapid view: It is organized roughly how one would typically read an ECG.
ECG Cheat Sheet ... ECG rapid view ... Intervals (PR, QRS, QT ... #Cribsheet #Electrocardiogram ... #Diagnosis #Reference
TCA Overdose on EKG
 • Sinus tachycardia
 • QRS prolongation
 • QT prolongation
 • Rightward deviation
TCA Overdose on EKG ... prolongation • QT ... antidepressants #EKG ... #ECG #electrocardiogram ... #cardiology #diagnosis
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... <300-360 ms: ↑ca ... #Approach #ECG ... #EKG #diagnosis ... #electrocardiogram
QT / QTc Interval Measurement in Wide QRS Complex
 - A wide QRS complex will lead
QT / QTc Interval ... prolongation of the QTC ... #QTc #Interval ... WideQRS #cardiology #diagnosis ... #ecg #ekg #electrocardiogram
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
   -
Normal QT Interval ... Bazett's Formula: QTc ... #QTc #Interval ... Measurement #cardiology #diagnosis ... #ecg #ekg #electrocardiogram