Cardio and Peripheral Vascular Flashcards
JNC 8: BP by Age
Start pharmacotherapy if BP exceeds:
140/90 mm Hg
<60 years old
CKD
150/90 mm Hg
≥60 years DM
Choice of Antihypertensive Agents
• JNC 8
Black patient:
Non-Black patient:
Black patient: Thiazide diuretic, CCB
Non-Black patient: Thiazide diuretic, CCB, ACE, ARB
Choice of Antihypertensive Agents
ACC/AHA
Thiazide diuretic, ACE, ARB, CCB
Amlodipine
CCB- can also worsen lower extremity edema
preventing calcium from entering the cells of the heart and arteries. Calcium causes the heart and arteries to squeeze (contract) more strongly. By blocking calcium, calcium channel blockers allow blood vessels to relax and open.
CCB- Almodipine, Nifedipine
Not an initial choice from JNC8 or ACC/AHA for HTN mgmt
Beta Blocker- (ex. Metoprolol )
also known as beta-adrenergic blocking agents, are medications that reduce blood pressure. work by blocking the effects of the hormone epinephrine, also known as adrenaline= cause the heart to beat more slowly and with less force, which lowers blood pressure.
Beta blockers (Metoprolol)
angiotensin II receptor blocker
Losartan
work by blocking receptors that the hormone acts on, specifically AT1 receptors, which are found in the heart, blood vessels and kidneys. Blocking the action of angiotensin II helps to lower blood pressure and prevent damage to the heart and kidneys
ARBs <angiotensin>
(ex. Losartan) </angiotensin>
Prevent the conversion of angiotensin I to angiotensin II, which disrupts the renin-angiotensin-aldosterone system (RAAS). Failure to convert angiotensin I to angiotensin II results in relative vasodilation…
increase plasma renin activity = smooth gradual BP reduction without affecting HR or cardio reflexes
Angiotensin Converting Enzyme Inhibitors (ACEI) (-Pril)
Lisinopril, Enalapril
Decrease sodium reabsorption and therefore decreased fluid reabsorption; this directly causes decreased levels of circulating sodium= decreased Afterload and BP
Thiazide Diuretics (Chlorthalidone, Hydrochlorothiazide)
- not good if pt has sulfa allergy
What should be checked in 2 weeks if amlodipine is prescribed?
Amlodipine is a CCB and does not need labs to rx
What should be checked in 2 weeks if lisinopril is prescribed?
Ace inhibitors cause body to hold onto K+
*Check K+ and Renal Studies (BUN, Cr)
What labs should be ordered if losartan is been prescribed?
hypotension, renal function, and potassium levels.
What should be checked in 2 weeks if chlorthalidone is prescribed?
Potassium
(thiazide diuretics dump K+ so need to watch for hypokalemia)