13 results
QT / QTc Interval Measurement in Prominent U Wave
If the U wave is distinct from the
QT / QTc Interval ... of the QT interval ... #Measurement #UWave ... cardiology #diagnosis #ecg ... #ekg #electrocardiogram
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
   -
Normal QT Interval ... rule: QT interval ... = QT / Sqrt(RR) ... cardiology #diagnosis #ecg ... #ekg #electrocardiogram
QT / QTc Interval Measurement in Wide QRS Complex
 - A wide QRS complex will lead
QT / QTc Interval ... increase in the QT ... EricsMedicalLectures/ #QT ... cardiology #diagnosis #ecg ... #ekg #electrocardiogram
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... the associated QT ... intervals on the EKG ... cardiology #diagnosis #ecg ... #ekg #electrocardiogram
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
the end of the T-wave ... than prolonged QT ... #electrocardiogram ... pathophysiology #ekg ... #ecg #cardiology
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... • ↓ Ca - long QT ... • ↓ Mg - long QT ... Syncope #Syndromes #ECG ... #EKG #Checklist
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... • QT interval is ... = QT / √ RR - ... @AmyChung #EKG ... Interpretation #ECG
This one at K = 2.4
The down up morphology remains
The computer measures the QT at 565
computer measures the QT ... QU-interval, not the QT ... smithECGBlog #Clinical #ECG ... #EKG #Hypokalemia ... #UWaves
Sinus Bradycardia in Anorexia Nervosa

The following ECG is from an 18 yr old female who presents
The following ECG ... ECG features in ... include: - QT ... / QTc prolongation ... #ECG #EKG #Clinical
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
changes in the T wave ... prolonged PR and QT ... #Hyperkalemia #EKG ... #ECG #Changes # ... Progression #Table