30 results
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
• PR interval ... always within the AV ... #SecondDegree #HeartBlock ... #Diagnosis #Cardiology ... #EKG #ECG #Electrocardiogram
First, Second (Type 1 and Type 2), and Third Degree Heart Blocks - Comparison

#HeartBlocks #Comparison #First
Comparison #HeartBlocks ... Second #Third #Cardiology ... #ECG #EKG #Electrocardiogram ... #Diagnosis #Table
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
branch block • PR intervals ... block is below the AV ... #SecondDegree #HeartBlock ... #Diagnosis #Cardiology ... #EKG #ECG #Electrocardiogram
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
(EKG) Digoxin ... - Decreases AV ... waves - Short QT ... interval Dr. ... #EKG #Cardiology
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
ventricular rate (↓ AV ... Shortening of QT ... interval • "Scooped ... digitalis #Toxicity #Electrocardiogram ... #cardiology #diagnosis
Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG
 • P-R interval gradually increases
Phenomenon) 2nd Degree AV ... • P-R interval gradually ... Block #AVBlock #diagnosis ... #cardiology #EKG ... #ECG #Electrocardiogram
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... on the EKG, and ... Irregular #Rhythm #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
Normal QT Interval Measurement
General rule: QT interval should be < 1/2 RR interval
   -
Normal QT Interval ... General rule: QT ... #Measurement #cardiology ... #diagnosis #ecg ... #ekg #electrocardiogram
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... is constant PR interval ... MobitzII #Type2 #diagnosis ... #cardiology #ecg ... #ekg #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• PR intervals ... • Block in AV ... degrees #summary #Diagnosis ... #EKG #electrocardiogram ... #ecg #cardiology