63 results
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
The JT Interval ... T-wave, the JT interval ... you use the JT Interval ... than prolonged QT interval ... pathophysiology #ekg
Quinidine produces the following ECG changes:
1. Prolongation of Q-T interval:
2. Prolongation of QRS complex:
3. Prominent V
the following ECG ... Prolongation of Q-T interval ... prolongation of P-R interval ... Diagnosis #Cardiology #ECG ... #EKG #Quinidine
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
Degree AV Block on EKG ... • P-R interval ... resets • P-P interval ... to 6:5 in this ECG ... diagnosis #cardiology #EKG
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
and widened QRS interval ... on EKG. ... ) 3 Short PR interval ... WPW #Cardiology #ECG ... #EKG #Electrocardiogram
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
prolong the QT interval ... Diagnosis #Cardiology #ECG ... #EKG
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
shortening of the RR interval ... • The RR interval ... the shortest RR interval ... group-beating" on the ECG ... #ekg #electrocardiogram
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... (using the RR interval ... associated QT interval ... EricsMedicalLectures/ #QT #QTc #Interval ... #ekg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
P wave and PR interval ... normal • The PP intervals ... • The P to P interval ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
• PR interval ... Diagnosis #Cardiology #EKG ... #ECG #Electrocardiogram
Hypokalemia on EKG 

Patient presenting with severe weakness.  Patient had GI bug with vomiting/diarrhea.
Hypokalemia on EKG ... leads with long QU interval ... #Hypokalemia #EKG ... #ECG #Electrocardiogram