25 results
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 ... intervals on the EKG ... #Rhythm #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
Hypothermia on EKG
 • J (Osborn) waves
 • PR, QRS, and QT prolongation
 • Various bradyarrythmias
Hypothermia on EKG ... • PR, QRS, and QT ... osborn #waves #EKG ... #ECG #electrocardiogram ... #cardiology #diagnosis
QT / QTc Interval Measurement in Prominent U Wave
If the U wave is distinct from the
QT / QTc Interval ... of the QT interval ... EricsMedicalLectures/ #QT ... #cardiology #diagnosis ... #ecg #ekg #electrocardiogram
Hyperkalemia after Missed Hemodialysis - Initial electrocardiogram showed peaked T waves and a prolonged QT segment
Hyperkalemia after ... Hemodialysis - Initial electrocardiogram ... and a prolonged QT ... A) #Clinical #Cardiology ... #EM #EKG #Hyperkalemia
TCA Overdose on EKG
 • Sinus tachycardia
 • QRS prolongation
 • QT prolongation
 • Rightward deviation
TCA Overdose on EKG ... prolongation • QT ... antidepressants #EKG ... #ECG #electrocardiogram ... #cardiology #diagnosis
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... hypomagnesemia, hypokalemia ... TorsadesDePointes #Diagnosis #Cardiology ... #ECG #EKG
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
than prolonged QT ... Interval #JTInterval #QTc ... #electrocardiogram ... pathophysiology #ekg ... #ecg #cardiology
This one at K = 2.4
The down up morphology remains
The computer measures the QT at 565
computer measures the QT ... at 591 ms This measurment ... QU-interval, not the QT ... smithECGBlog #Clinical #ECG ... #EKG #Hypokalemia