12 results
Tachycardia - Wide vs Narrow Complex, Regular vs Irregular rhythm table

#Diagnosis #Cardiology #EKG #ECG #WideComplex #Narrow
vs Irregular rhythm ... table #Diagnosis ... #ECG #WideComplex ... #Table #Comparison ... #Differential
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... the associated QT ... for the QT intervals ... Rhythm #cardiology #diagnosis ... #ecg #ekg #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Count-Off - Irregular ... Flattened T waves QT ... • QT interval is ... = QT / √ RR - ... thumb: a normal QT
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... • ↓ Ca - long QT ... #diagnosis #cardiology ... #electrocardiogram ... #differential
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
prolonged PR and QT ... QRS widens, and irregular ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table
Short QT Syndrome
Short QT syndrome (SQTS) is a very rare, recently described syndrome in which an
interval (QTc < ... patients with SQTS Hypercalcemia ... #Syndrome #diagnosis ... #cardiology #ecg ... #ekg #electrocardiogram
Torsades de Pointes
• "Twisting of the pointes" 
• QRS axis swings from positive to negative direction
Originates from single focus ... that prolong the QT ... Hypomagnesemia Hypokalemia ... TorsadesDePointes #Diagnosis ... #Cardiology #ECG
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... node Narrow - Irregular ... #EKG #diagnosis ... #electrocardiogram ... #cardiology #differential
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Diagnosis Framework ... and a prolonged QT ... waves - Short QT ... waves • Short QT ... #ecg #ekg #electrocardiogram
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
., long QT syndrome ... Hypomagnesemia • Hypokalemia ... may not occur Differential ... Diagnosis: • PAC ... #differential #