torsades de pointes Flashcards
1
Q
what is torsades de pointes
A
form of polymorphic VT with long QT interval
may deteriorate into VF
2
Q
causes of long GT interval
A
congenital
antiarrhythmics: amiodarone, sotalol
tricyclic antidepressants
antipsychotics
chloroquine
terfenadine
erythromycin
electrolyte: hypocalcaemia, hypokalaemia, hypomagnesaemia
myocarditis
hypothermia
subarachnoid haemorrhage
2
Q
management of torsades de pointes
A
IV Mg sulphate
3
Q
A
