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MG: circulatory tract > Arrhythmias > Flashcards

Arrhythmias Flashcards

1
Q

Quinidine

A

Class 1a antiarrhythmic
Short to medium Na+ channel blocker
Anticholinergic effect

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2
Q

Lidocaine

A

Class 1b antiarrhythmic
Short and rapid Na+ channel blocker

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3
Q

Phenytoin

A

Class 1b antiarrhythmic
Short and rapid Na+ channel blocker

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4
Q

Lidocaine indications

A

Ventricular tachycardia
Ischemia
Ventricular fibrillation caused by infarction
!Digitalis induced ventricular tachycardia!
Local anesthetic

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5
Q

Phenytoin indications

A

Anti-epileptic
Digitalis induced ventricular tachycardia

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6
Q

Flecainide

A

Class Ic antiarrhythmic
Very long Na+ channel blocker

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7
Q

Propanolol

A

Beta blocker
Class II antiarrhythmic
Induces unspecified Na+ channel blockage

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8
Q

Propafenone

A

Class Ic antiarrhythmic
Very long Na+ channel blocker

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9
Q

Amiodarone

A

Class III antiarrhythmic
K+ channel blocker

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10
Q

Verapamil

A

Class IV antiarrhythmic
L-type calcium channel blocker

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11
Q

Gallopamil

A

Class IV antiarrhythmic
L-type calcium channel blocker

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12
Q

Atropine indications

A

Sinus bradycardia
SA block with vagal discharges
2nd or 3rd AV block

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13
Q

Ipratropium bromide

A

Sinus bradycardia
SA block with vagal discharges
2nd or 3rd AV block

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14
Q

Digitoxin

A

Cardiac glycoside
Reversibly inhibits the Na+/K+ ATPase

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15
Q

Digoxin

A

Cardiac glycoside
Reversibly inhibits the Na+/K+ ATPase

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16
Q

Cardiac glycoside indications

A

Chronic heart failure
Supraventricular tachycardia
Atrial arrhythmia/fibrillation
oedema reduction

17
Q

Digitoxin vs. digoxin

A

Digitoxin is given to elderly with an unclear renal function

18
Q

Ouabain

A

Cardiac glycoside

19
Q

Dobutamine

A

Beta-adrenoreceptor agonist

20
Q

Dobutamine indication

A

Cardiac shock

21
Q

Enoximone

A

Phosphodiesterase 3 inhibitor. Prevents the cAMP breakdown in the heart.

22
Q

Milrinone

A

Phosphodiesterase 3 inhibitor. Prevents the cAMP breakdown in the heart.

23
Q

PDE3 inhibitors indication

A

Severe and resistant heart failure

24
Q

Pimobendane

A

Calcium sensitizer

25
Q

Pimobedane indication

A

Heart failure

MG: circulatory tract (3 decks)

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