66 results
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
Bundle Branch Block ... Bundle Branch Block ... #JTInterval #QTc ... #electrocardiogram ... #ecg #cardiology
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... Measurement in ... #QTc #Interval ... #Measurement #Irregular ... #ekg #electrocardiogram
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
2nd Degree AV Block ... interval gradually ... to 6:5 in this ECG ... Second #Degree #AV #Block ... #ECG #Electrocardiogram
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
   -
Normal QT Interval ... rule: QT interval ... #QTc #Interval ... cardiology #diagnosis #ecg ... #ekg #electrocardiogram
QT / QTc Interval Measurement in Wide QRS Complex
 - A wide QRS complex will lead
QT / QTc Interval ... Measurement in ... #QTc #Interval ... #Measurement #WideQRS ... #ekg #electrocardiogram
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV Block ... is constant PR interval ... location of the block ... location of the block ... #ekg #electrocardiogram
Differences between Mobitz Type I and Type II Second-Degree AV Block

#Mobitz #Wenckebach #TypeI #TypeII #Type1 #Type2
Second-Degree AV Block ... #Type1 #Type2 #AVBlock ... Cardiology #Comparison #Electrocardiogram ... #ECG #EKG
Right Bundle Branch Block (RBBB) - EKG Diagnosis
EKG Criteria:
 • QRS > 0.12 seconds
 • Slurred
Bundle Branch Block ... EKG Criteria: ... R in V1 UCSD Internal ... #BundleBranch #Block ... #ECG #electrocardiogram
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart Block ... • PR interval ... beating" • The block ... Diagnosis #Cardiology #EKG ... #ECG #Electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
: • 1° Block - ... >200ms • 2° Block ... loss of P • 2° Block ... • 3° Complete Block ... /QTC Interval: