330 results
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 ... intervals are seen ... interval is 8 x ... • QT interval
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 ... you use the JT Interval ... than prolonged QT ... interval in patients
Want to remember what drugs prolong the QT interval? Remember COLLAPSE - Kitty Canavan @KathrynCanavan1
#Diagnosis #Peds
drugs prolong the QT ... interval?
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
Hypernatremia Management Algorithm
Acute vs Chronic
Calculate Losses
 • Current water Deficit
 • Ongoing Free water Losses
 •
Hypernatremia Management Algorithm ... Losses SCVMC Internal ... Hypernatremia #Management #Algorithm ... #treatment #nephrology
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
QT / QTc Interval Measurement in Irregular Rhythms
2 Approaches:
 • Measure and calculate the QTc for
QT / QTc Interval ... the associated QT ... interval), and ... the QTc for the QT ... EricsMedicalLectures/ #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