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diagnosis cardiology ecg ekg electrocardiogram pharmacology differential interval pathophysiology management measurement torsadesdepointes antiarrhythmics canadian classes classification clinical digoxin stratification syndrome
QT/QTc- Interval • Start of Q-wave to end of the T-wave (time of ventricular depolarization + repolarization). • Life threatening
QT/QTc- Interval ... ) • Prolonged QT ... /QTc interval may ... • QT interval ... = QT / √RR
The JT Interval and Pro-Arrhythmic Risk Measured from the J-point to the end of the T-wave, the
The JT Interval ... T-wave, the JT interval ... JTc=QTc-QRS When ... than prolonged QT ... #JTInterval #QTc
Want to remember what drugs prolong the QT interval? Remember COLLAPSE - Kitty Canavan @KathrynCanavan1 #Diagnosis #Peds
drugs prolong the QT ... interval? ... COLLAPSE #Mnemonic #QTc
Common toxicities of antifungal agents. CNS = central nervous system; 5-FC = flucytosine; GI = gastrointestinal;
= intravenous; QTc ... = corrected QT ... interval.
REBEL Review 100: Canadian Syncope Risk Score Predisposition to Vasovagal Symptoms (-1) History of Heart Disease (1) Any
100: Canadian Syncope ... (1) Corrected QT ... Interval > 480 ... (2) Vasovagal Syncope ... (-2) Cardiac Syncope
QT / QTc Interval Measurement in Wide QRS Complex - A wide QRS complex will lead
QT / QTc Interval ... increase in the QT ... interval that is ... EricsMedicalLectures/ #QT ... #QTc #Interval
EKG Interpretation Cheat Sheet 1) Rate - Regular - Count-Off - Irregular - Count number
Flattened T waves QT ... /QTC Interval: ... • QT interval is ... = QT / √ RR - ... thumb: a normal QT
Normal QT Interval Measurement General rule: QT interval should be < 1/2 RR interval -
Normal QT Interval ... General rule: QT ... = QT / Sqrt(RR) ... in seconds) #QT ... #QTc #Interval
Congenital Long QT Syndrome: Illness Script Who? - Kids or young adults, usually < 30 - high
Congenital Long QT ... Symptoms: - Syncope ... baseline EKG in new syncope ... - QT prolonging ... abnormalities - Avoid QTc
Approach to ECGs - Syncope Syndromes Electrolytes • ↑K - brady, peak T, wide QRS, no P,
• ↑ Ca - short QT ... • ↓ Ca - long QT ... • ↓ Mg - long QT ... heart block Long QT ... -500ms) Short QT
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