19 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
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 ... #SecondDegree #HeartBlock ... #ECG #Electrocardiogram
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
bundle branch block ... • PR intervals ... #SecondDegree #HeartBlock ... Diagnosis #Cardiology #EKG ... #ECG #Electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
• PR interval < ... /QTC Interval: ... • QT interval is ... Interpretation #ECG ... #Electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Degree, Mobitz II HeartBlock ... • PR intervals ... SarahFoohey #HeartBlocks ... #electrocardiogram ... #ecg #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... 1º - long PR intervals ... 200ms from longer pause ... #electrocardiogram ... #cardiology #differential
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
nodal conduction Uses ... Digoxin effect on ECG ... waves - Short QT ... interval Dr. ... #Digitalis #ECG
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Approach to ECGs ... Syncope #Syndromes #ECG ... #EKG #Checklist ... diagnosis #cardiology #electrocardiogram ... #differential
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
with prolonged PR interval ... progressively prolonged PR intervals ... Blocks #heart #heartblock ... #cardiology #ecg ... #electrocardiogram
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... dextrocardia, normal Intervals ... ) - HiPR: AV block ... ICD/pacer - QTc ... #electrocardiogram