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Cardio > Arrhythmia Drugs > Flashcards

Arrhythmia Drugs Flashcards

1
Q

What is Adenosine used for?

A

Supraventicular Tachycardia (SVT)

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2
Q

How does Adenosine work?

A

Briefly hyperpolarises AV node and prevents impulse conduction

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3
Q

What is Digoxin used for?

A

Atrial fibrillation (AF)

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4
Q

How does digoxin work?

A

Slows conduction in the AV node

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5
Q

What is Verapimil used for?

A

Atrial fibrillation and atrial flutter

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6
Q

How does Verapimil work?

A

slows conduction and increases refractory period in the AV node

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7
Q

What is Lignocaine used for?

A

Post MI ventricular arrhythmias

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8
Q

How does lignocaine work?

A

Blocks Na channels in ischaemic areas of the heart (where conduction is faster)

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9
Q

What is Disopyranide for?

A

Prevention of ventricular arrhythmias

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10
Q

How does Dispoyranide work?

A

Blocks open Na channels

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11
Q

What is Flecainide used for?

A

Prevention of AF

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12
Q

How does flecainide work?

A

Decreases conduction in myocardium so reduces contractility

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13
Q

What is Amiodarone used for?

A

To suppress re-entry (SVT/VT)

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14
Q

How does Amiodarone work?

A

Blocks K channels to slow repolarisation

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15
Q

What is used to treat AF?

A

Digoxin

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16
Q

What is used to treat SVT?

A

Adenosine

17
Q

What is used to treat atrial flutter?

A

Verapimil

18
Q

What is used to treat ventricular arrhythmias?

A

Lignocaine

Disopyramide

19
Q

What is used post MI to treat ventricular arrhythmias?

A

Lognocaine

20
Q

What is used to prevent AF?

A

Flecainide

21
Q

What is used to suppress re-entry (SVT/VT)

A

Amiodarone

Cardio (10 decks)

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