162 results
Want to remember what drugs prolong the QT interval? Remember COLLAPSE - Kitty Canavan @KathrynCanavan1
#Diagnosis #Peds
drugs prolong the QT ... interval? ... KathrynCanavan1 #Diagnosis #Peds
QT/QTc- Interval
•	Start of Q-wave to end of the T-wave (time of ventricular depolarization + repolarization).
•	Life threatening
QT/QTc- Interval ... /QTc interval may ... interval is 8 x ... • QT interval ... HR) / 180 #QTInterval
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 ... than prolonged QT ... interval in patients ... #JTInterval #QTc
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... (constant R-R Interval ... (variable R-R interval ... setting of long QT ... Differential #Diagnosis #Algorithm
Common toxicities of antifungal agents. 
CNS = central nervous system; 5-FC = flucytosine; GI = gastrointestinal;
QTc = corrected QT ... interval.
Torsades de Pointes 
•Precipitated by drugs that prolong the QT interval 
•Class IA antidysrhythmics (procainamide, quinidine)
that prolong the QT ... interval •Class
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
• PR interval < ... Flattened T waves QT ... • QT interval is ... formula: QTC = QT ... thumb: a normal QT
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
and prolongs PR interval ... potential • Prolongs QT ... interval Class ... and prolongs PR interval
Recurrent Polymorphic VT/Torsades de Pointes - Management Algorithm
Drugs that prolong QT interval:
 • Class 1a (quinidine,
Pointes - Management Algorithm ... Drugs that prolong QT ... interval: • Class ... Congenital long QT ... TDP #Management #Algorithm
Toxidrome Algorithm
#Diagnosis #Peds #Pediatrics #Toxidrome #Algorithm #PEMSource
Toxidrome Algorithm ... #Diagnosis #Peds ... Pediatrics #Toxidrome #Algorithm