42 results
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... /QTC Interval: ... • QT interval is ... WolffParkinson-White syndrome ... #cardiology #diagnosis
Hypercalcemia - EKG Findings
Causes of Hypercalcemia 
• Malignancy 
• Milk-alkali syndrome 
• Vitamin D toxicity 
•
Findings Causes ... • Milk-alkali syndrome ... #ECG #Electrocardiogram ... #Differential #Causes ... #Diagnosis #Cardiology
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... intervalClass ... quinidine) •Class ... TorsadesDePointes #Diagnosis #Cardiology ... #ECG #EKG
Short QT Syndrome
Short QT syndrome (SQTS) is a very rare, recently described syndrome in which an
Short QT Syndrome ... Short QT syndrome ... interval (QTc < ... it is not clear ... #cardiology #ecg
There are two patterns of T-wave abnormality in Wellens’ syndrome:
-Type A = Biphasic, with initial positivity
negativity (25% of cases ... inverted (75% of cases ... ) #Diagnosis #Cardiology ... #ECG #EKG #Wellens ... #Syndrome #TypeA
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
that prolong the QT ... interval ... quridine) Class ... TorsadesDePointes #Diagnosis #Cardiology ... #ECG #EKG
Causes of Sudden Cardiac Arrest
Primary Myocardial Processes (> 90%):
 • Acquired structural heart disease: CAD, Most
Causes of Sudden ... Channelopathies: Long/short QT ... Acquired long QT ... Cardiac #Arrest #cardiology ... differential #diagnosis #causes
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
and prolongs PR interval ... potential • Prolongs QT ... interval Class ... Classification #Classes ... #cardiology #pharmacology
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Approach to ECGs ... dextrocardia, normal Intervals ... #Approach #ECG ... electrocardiogram #cardiology ... #interpretation
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
digoxin toxicity • Classic ... Shortening of QT ... interval • "Scooped ... #ecg #toxicology ... #cardiology #diagnosis