Cardiovascular Drugs Flashcards Preview

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Flashcards in Cardiovascular Drugs Deck (123)
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1

Therapeutic uses of Lidocaine for arrhythmias

Class 1 B tachyarrhythmia drug

IV for ventricular arrhythmias due to general anesthetics, surgery, ischemia and trauma

Digitalis induced arrhythmias

2

Examples of Benzodiazepines

Diltizem

3

Classifications of drugs used to treat Tachyarrhytmias

Class I (A, B, C)

Class II

Class III

Class IV

4

Drug of choice in cats for treatment of Myocardial Hypertrophy

Diltiazem

5

Drug recommended as the first line antihypertensive in cats unless the cause is hyperthyroidism.

Amlopdipine

____________________________

Beta Blocker used if caused by hyperthyroidism

6

Examples of Dihydropyridines

Amlodipine

Nifedipine

7

Mechanism of action of Carvedilol

Nonselective beta blocker and alpha1 blocker

Inhibits endothelin (ET) release

 

8

Drug of choice to treat atrial fibrillation in horses

Quinidine

9

Drugs used in the treatment of bradyarrythmias

Atropine

Isoproterenol

Epinephrine

10

Classifications of Calcium Channel Blockers

Diphenyl Alkylamines

Benzodizepines

Dihydropyridines

11

Examples of Diphenyl Alkylamines

Verapamil

12

Examples of Direct-Acting Vasodilators

Hydralazine

Nitrates

13

Mechanism of action of Calcium Channel Blockers

Inhibit the influx of extracellular calcium → decrease in intracellular calcium inhibits myocardial contraction → dilation of coronary and systemic arteries

14

Cardiac Stimulants

Beta-1 Agonists

Phosphodiesterase Inhibitors

Glucagon

Calcium Salts

15

Examples of Class III tachyarrhythmia drugs

Bretylium

Amiodarone

Sotalol

16

Other agents used in the treatment of CHF

Oxygen therapy

Morphine sulfate

Aminophylline

Nebulization of ethanol

17

Examples of Angiotension II Antagonists

Losartan

18

Effect of Class III tachyarrhythmia drugs

Prolong action potential duration by blocking potassium channels

19

Examples of Non Selective Alpha Blockers

Phentolamine

Phenoxybenzamine

 

20

Therapeutic uses of Phenytoin

Class 1 B tachyarrhythmia drug

Digitalis induced arrhythmias in dogs ONLY

21

Predisposing factors of tachyarrhythmias caused by digitalis glycoside use

Hypokalemia

Hypomagnesemia

Hypercalcemia

Hypernatremia

Hypothyroidism

Hyperthyroidism

Hyposemia

22

Mechanism of action of Angiotension II Antagonists

Competitive antagonist of angiotension II receptors

23

Examples of Indirect Sympatholytics

Bretylium

24

Sinus bradycardia can be treated with

Atropine

Isoproterenol

25

Types of arrhythmias

Tachyarrhythmia

Bradyarrhythmia

26

Drugs used to treat emergency hypertension or hypertensive crisis

Hydralazine or Sodium Nitroprusside IV

Propranolol or Acepromazine IV

Phentolamine IV

Oral Calcium Blockers - Prazosin or ACE Inhibitors

27

Effect of Class I C tachyarrhythmia drugs

No effect on action potential

28

Adverse effects of Pimobendan

Diarrhea

Vomiting

Inappetence

Seizures

PU/PD

29

Sympatholytic drug types

Non Selective Alpha-Blockers

Selective Alpha1 Blockers

Presynaptic Alpha2 Blockers

Nonselective Beta-Blockers

Selective Beta1 Blockers

Beta and Alpha Blockers

Indirect Sympatholytics

30

Effects of Digitalis Glycosides on the Kidney

Diuretic effect maily secondary to increased cardiac output