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Emergency Medicine Conditions > Ventricular Tachycardias > Flashcards

Ventricular Tachycardias Flashcards

1
Q

What is a ventricular tachycardia

A

Originates from a ventricular ectopic focus

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2
Q

What does ventricular tachycardia have the potential to precipitate

A

Ventricular fibrillation

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3
Q

Monomorphic VT

A

Commonly caused by MI

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4
Q

Polymorphic VT

A

Precipitated by prolongation of the QT interval

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5
Q

Example of polymorphic VT

A

Torsades de pointes

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6
Q

Drug causes of prolonged QT interval

A

Amiodarone, sotalol, TCAs, fluoxetine, chloroquinine, terfenadine, erythromicin

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7
Q

Electrolytes causes of prolonged QT interval

A

Hypocalcaemia, hypokalaemia, hypomagnesaemia

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8
Q

Conditions causing prolonged QT interval

A

Acute MI, myocarditis, hypothermia, subarachboid haemorrhage

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9
Q

WHen is immediate cardioversion indicated

A

Systolic BP <90, chest pain, HF

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10
Q

Drug therapy for VTs

A

Amiodarone, lidocaine, procainamide

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11
Q

What to do if drug therapy fails to manage VT

A

EPS, ICD

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Emergency Medicine Conditions (51 decks)

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