Drug Therapy for Heart Failure Ch 24 Flashcards Preview

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Flashcards in Drug Therapy for Heart Failure Ch 24 Deck (11)
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1

Catecholamines

active amines (e.g., epinephrine, norepinephrine, dopamine) that have an effect on the cardiovascular system

2

Decompensation

the inability of the heart to adequately circulate oxygenated blood to the body’s vital organs

3

Diastolic dysfunction

impaired relaxation and filling of the ventricles during diastole

4

Digitalis toxicity

an accumulation of digitalis in the body that leads to nausea, vomiting, and atrial tachycardia

5

Digitalization

the administration of a loading dose of digoxin (Lanoxin) to achieve a therapeutic blood level of the medication more rapidly

6

Endothelin

a peptide that raises blood pressure, constricts blood vessels, and contributes to the onset of heart failure

7

Inotropic

related to or influencing the force of myocardial contractility

8

Renin

an enzyme produced by the kidney that divides angiotensinogen to form angiotensin I, which is then changed to angiotensin II to produce vasoconstriction

9

Systolic dysfunction

impaired myocardial contraction during systole

10

Therapeutic index

the blood level of a medication that will produce therapeutic effects

11

Ventricular remodeling

dilatation and hypertrophy of the ventricles in the initial phases of heart failure, causing the ventricle to assume a spherical shape