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)
You prescribed 20 mg lisinopril daily for Mr. Thibodeaux. He returns in 4 weeks. Which choices are reasonable?
30 days ago 138/90 12 days ago 140/95 21 days ago 138/85 2 days ago 138/90 14 days ago 130/90 Yesterday 135/85
- Continue plan for another 4 weeks.
- Increase lisinopril to 40 mg daily.
- Add 50 mg losartan.
- Add 5 mg amlodipine.
- Add 12.5 mg chlorthalidone.
- Increase lisinopril to 40 mg daily.
- Add 5 mg amlodipine.
- Add 12.5 mg chlorthalidone.
- Add 50 mg losartan. (NEVER COMBINE ACE AND ARB- both work in RAS system)
Total cholesterol= 210 mg/dL
HDL= 38 mg/dL
LDL 130 mg/dL
Triglycerides= 323 mg/dL A1C 6.5%
ASCVD risk of 10.8 do they need statin?
Yes, need to decrease risk of heart event
History of CHD or stroke… Recommended LDL Reduction with Statin
50% reduction: atorvastatin 40, 80 mg or rosuvastatin 20, 40 mg
LDL >190 mg/dL (familial hyperlipidemia)
Recommended LDL Reduction with Statin
50% reduction
DM, aged 40-75, LDL 70-189 mg/dL
Recommended LDL Reduction with Statin
30-49% reduction: Atorvastatin 10, 20 mg,
Rosuvastatin 5, 10 mg, simvastatin 10, 20 mg, pravastatin 20, 40 mg
Recommended LDL Reduction with Statin
Global 10-year risk score ≥7.5% (primary prevention)
30-49% reduction
You’ve decided to prescribe 10 mg of rosuvastatin for Mr. Thibodeaux. This is:
- precarious if LFTs have not been ordered recently.
- an example of primary prevention.
- aggressive considering his risk factors.
- going to reduce his risk of a cardiovascular event by 30-49%.
- an example of primary prevention.
When do you want to initiate a fibrate?
When triglycerides are above 500
(goal < 150)
Type of med that causes body to hold onto sodium ( increase in h20 retention) increases BP along with lower extremity edema
Naproxen (NSAID)
Dont want a patient with high BP taking