anti-hypertensive drugs Q1
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Questions and Answers

how would we generally reduce BP?

as BP=CO*PVR. reduce PVR. reduce CO by -chronotropes/-inrotropes, and decrease blood volume.

the function of ACE (angiotensin enzyme inhibitor)

converts angiotensin I to angiotensin II (play a role in increasing BP). breaks down pro-inflammatory bradykinin.

how can ACEIs (angiotensin converting enzyme inhibitor reduce BP).

reduce peripheral resistance and cardiac load. and they are non- peptide (orally active drugs)

name 2 drugs of ACEIs and list their adverse effects. *hint, they end with (-pril)

<p>ramipril, lisinopril. drug cough (bradykinin). angioedema (bradykinin). Hyperkalaemia (aldosterone inhibition). Teratogenic.</p> Signup and view all the answers

describe the action of ARBs (angiotensin receptor blockers)

<p>they block angiotensin II type 1 receptors (AT1). they r alternatives to ACEIs (when patient resistant). similar adverse effects to ACEIs but (nor dry cough).</p> Signup and view all the answers

name 2 drugs of ARBs. * hint; end with (sartan).

<p>losartan, candesartan.</p> Signup and view all the answers

the effect of (B1+B2) receptor antagonism on hypertension.

<p>negative chrono and inotropic effect ( reduce contraction and rate in heart).</p> Signup and view all the answers

the effect of B2 receptor antagonism?

<p>vascular smooth muscle (constriction).</p> Signup and view all the answers

the effect of b1 receptor antagonism in kidney

<p>decrease renin release &gt; decrease angiotensin.</p> Signup and view all the answers

general effects of beta blockers in hypertension?

<p>decrease cardiac output. transient increase in PVR. long-term decrease in PVR.</p> Signup and view all the answers

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