CVRS drugs

Question 1

What is the function of cardiac glycosides?

Answer 1

• effect: increase contractility , decrease excitability
• treat: ATRIA FLUTTER , Fibrillation
• side effect: CONDUCTION BLOCK due to decrease conduction velocity from SA to AV

BRAND: digitalis, digitoxin

Question 2

What is the function of parasympothlytics?

Answer 2

• drugs that decrease the activity of the parasympathetic nervous system
• effect: increase cardiac activity
• treat: bradycardiac

BRAND: atropine

Question 3

What is the function of Ca channel blocker?

Answer 3

• effect: smooth muscle relaxation (less cross bridges form between actin and myosine) –> less contraction
• decrease blood pressure
• treat: hypertension

Question 4

What is the function of sympatholytics?

Answer 4

• drugs that inhibits beta 1 receptor (stimulates)
• aka beta-blocker
• effect: decrease cardiac activity
• treat: tacharrythmias, hypertension

BRAND: Inderol

Question 5

What is the function of antiarrhythmias ?

Answer 5

quinidine –> treat atria arrhythmia

lidocaine –> treat ventricular arrhythmia

Question 6

What drug is used for m.infarction

Answer 6

TPA: tissue plasmin activator
–> converts plasminogen to plasmin to induce clot breakdown

Fibrinolytics
–>breakdown fibrin