500
5 causes of Torsades include:
What is
Drugs that block potassium channels: some antiarrhythmics or antidepressants
Genetic abnormalities of the potassium channel
Genetic abnormalities of the sodium channel (think Bruguda Syndrome)
Class 1A antiarrhythmics
Most class III antiarrhythmics
Tricyclic antidepressants
Some antibiotics: erythromycin, clindamycin, Bactrim
Liquid protein diets
Hypomagnesemia, hypocalcemia, hypokalemia
Mitral valve prolaspe