24 results
TCA Overdose on EKG
 • Sinus tachycardia
 • QRS prolongation
 • QT prolongation
 • Rightward deviation
tachycardia • QRS prolongation ... • QT prolongation ... #ECG #electrocardiogram ... #cardiology #diagnosis ... #clinical #criteria
Hypothermia on EKG
 • J (Osborn) waves
 • PR, QRS, and QT prolongation
 • Various bradyarrythmias
Hypothermia on EKG ... • PR, QRS, and QT ... prolongation ... #ECG #electrocardiogram ... #cardiology #diagnosis
QT / QTc Interval Measurement in Wide QRS Complex
 - A wide QRS complex will lead
QT / QTc Interval ... increase in the QT ... consequence as prolongation ... Measurement #WideQRS #cardiology ... #diagnosis #ecg
Torsades de Pointes (TdP): Pathogenesis and Clinical Findings

Polymorphic ventricular tachycardia initiated by PVC in the setting
the setting of QT ... interval prolongation ... dePointes #TdP #Diagnosis ... pathophysiology #cardiology ... #causes #differential
QTc Prolongation - Medications and Conditions that Prolong QT: From "A to N"
A - Anti-A-rrhythmics
B -
QTc Prolongation ... Conditions that Prolong QT ... #QTc #Prolongation ... diagnosis #table ... #QT #mnemonic
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... • ↓ Ca - long QT ... • ↓ Mg - long QT ... -500ms) Short QT ... #diagnosis #cardiology
Congenital Long QT Syndrome: Illness Script

Who?
 - Kids or young adults, usually < 30
 - high
Congenital Long QT ... - QT prolonging ... channel mutations w/prolongation ... LongQT #Syndrome #Diagnosis ... #Cardiology
Common Medications Known to Prolong QTc
Antiarrhythmics - Amiodarone, sotalol, flecainide, quinidine, dronedarone, dofetilide
Vasopressors/inotropes - Epinephrine, norepinephrine,
#Prolongation # ... Medications #Causes ... #differential # ... diagnosis #pharmacology ... #table
Causes of Sudden Cardiac Arrest
Primary Myocardial Processes (> 90%):
 • Acquired structural heart disease: CAD, Most
Channelopathies: Long/short QT ... Acquired long QT ... Cardiac #Arrest #cardiology ... #differential # ... diagnosis #causes
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... prolonged PR and QT ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table