ORGANOTROPIC AGENTS - Antiarrhythmic agents Flashcards Preview

Pharmacology > ORGANOTROPIC AGENTS - Antiarrhythmic agents > Flashcards

Flashcards in ORGANOTROPIC AGENTS - Antiarrhythmic agents Deck (28):
1

This drug is a Class IA antiarrhythmic drug

Quinidine

2

This drug is a Class IC antiarrhythmic drug

- Lidocaine
- Flecainide

3

This drug is a Class II antiarrhythmic drug

Propranolol

4

This drug is a Class III antiarrhythmic drug

Sotalol

5

This drug prolongs repolarization

Sotalol

6

This drug is a Class IV antiarrhythmic drug

Verapamil

7

This drug is used in treating supraventricular tachycardias

Digoxin

8

This drug is associated with Torsades de pointes

Sotalol

9

This drug has beta-adrenergic blocking activity

Sotalol

10

This drug is useful in terminating atrial but not ventricular tachycardias

Verapamil

11

This is a drug of choice for acute treatment of ventricular tachycardias

Lidocaine

12

True or False. The calcium channel blockers have direct negative inotropic effects because they reduce the inward movement of calcium during the action potential.

TRUE

13

True or False. Common unwanted effects of the dihydropyridines are due to vasodilation.

TRUE

14

True or False. Verapamil is a more potent vasodilator than nifedipine.

FALSE

15

This drug is contraindicated in patients with moderate to severe heart failure

Verapamil

16

This drug is used intravenously to terminate supraventricular tachycardias

Verapamil

17

This drug has a little or no direct effect on chronotropy and dromotropy at normal doses

Nifedipine

18

True or False. Verapamil has a significant effect on automaticity in the SA node.

TRUE

19

This drug acts by inhibiting slow calcium channels in the SA and AV nodes

Diltiazem

20

True or False about verapamil. It blocks L-type calcium channels

TRUE

21

True or False about verapamil. It increases heart rate

FALSE

22

True or False about verapamil. It relaxes coronary artery smooth muscle

TRUE

23

True or False about verapamil. It depresses cardiac contractility

TRUE

24

The following calcium channel blockers are useful in the treatment of cardiac arrhythmias

- Bepridil
- Diltiazem
- Verapamil

25

The following calcium channel blockers are not useful in the treatment of cardiac arrhythmias

Nifedipine

26

The following are common adverse effects of calcium channel blockers

- Dizziness
- Headache
- Flushing

27

The following are not common adverse effects of calcium channel blockers

Skeletal muscle weakness

28

The adverse reactions characteristic for lidocaine

Hypotension, paresthesias, convulsions

Decks in Pharmacology Class (41):