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Kaplan Qbank USMLE



Author5 Posts
  #1

can someone explain me the concept of TORSADES?

  #2

It is called twisting of the points", referring to the characteristic appearance of the electrocardiogram during the rhythm abnormality. Torsades de Pointes usually occurs in the setting of a prolonged QT interval on the electrocardiogram.

It also occurs as a complication of drugs that prolong the QT interval by blockade of potassium channels.

  #3

Examples:
quinidine
decreased potassium or magnesium
phenothiazines
tricylics antidepressants
liquid protein
intracranial events
3rd degree AV block
idiopathic

___________________
Smell the coffee! "Is That an Osler move??"

  #4

thx kmp and mlj

  #5

thx







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