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Circulatory System test (MVCTC VS) > heart drugs > Flashcards

Flashcards in heart drugs Deck (16):
1

Workload of the hear is divided into 

preload and afterload 

2

Preload 

volume of blood entering the right side of the heart 

3

Afterload 

force needed to push blood out of the ventricles 

4

•If the heart is not working properly, it can compensate by a few mechanisms:

–Increase heart rate

–Increase stroke volume

–Increase efficiency

–Enlarge itself

5

Positive inotropic drugs 

increas the force of myocardial contration 

6

Negative inotropic drugs 

decrease the force of myocardial contration 

7

Cardiac glycosides function

increase the strength of cardiac contractions, decrease heart rate, have an antiarrhythmic effect, and decrease signs of dyspnea 

8

Positive inotropes side effects 

anorexia 

vomiting 

diarrhea

cardiac arrhythmias 

9

Catecholmines function 

increase the force and rate of myocardial contraction, constrict peripheral blood vessels and increase blood glucose levels

10

Antiarrhythmic drugs function 

Used to correct variation in the normal beating of the heart (which can lead to reduced cardiac output)

11

Vasodilators function

Drugs used to dilate arteries and/or veins, which alleviates vessel constriction and improves cardiac output

12

Diuretics function 

Drugs that increase the volume of urine excreted by the kidneys and thus promote the release of water from the tissues (lowers the fluid volume in tissue)

13

Anticoagulants function 

Inhibit clot formation by inactivating one or more clotting factors

–Used to inhibit clotting in catheters, to prevent blood samples from clotting, to preserve blood transfusions, and to treat emboli

14

Hemostatic drugs

 

–Help promote the clotting of blood

–May be parenteral or topical

15

Types of Parenteral Hemostatic drugs 

Vitamin K1

Protamine sulfate

16

Types of Topical Hemostatic drugs 

-silver nitrate 

-hemostat power 

-gelfoam gelatin sponges

-thrombogen topical thrombin solution