Chapter 28: Hypertension Flashcards
What is the cause of primary, or essential, HTN
Cause is unknown,
but risk factors are usually present (like obesity, smoking, excessive salt intake, etc)
What is the cause of secondary HTN
Renal disease
What is normal BP considered
SBP < 120 mmHg and DBP < 80 mmHg
What is stage 1 HTN considered
SBP 130-139 mmHg
or
DBP 80-89
What is stage 2 HTN considered
SBP >/= 140 mmHg or DBP >/= 90 mmHg
Lifestyle management of HTN includes reducing Na intake to < _____ mg daily
1500
Key drugs that can increase BP
o Amphetamines and ADHD drugs o Cocaine o Decongestants (e.g. pseudoephedrine, phenylephrine) o Erythropoietin-stimulating agents o Immunosuppressants (e.g. cyclosporine) o NSAIDs o Systemic steroids
What are natural products that can be used for HTN
Fish oil
Coenzyme Q10
L-arginine
garlic
What are the 4 preferred drug classes for initial treatment or titration of treatment
ACEi
ARB
CCBs
thiazide diuretics
When to start treatment in Stage 2 HTN
When SBP is >/= 140 mmHg or DBP >/= 90 mmHg
When to start treatment in Stage 1 HTN
SBP 130-139 mmHg or DBP 80-89 and
- Clinical CVD (stroke, HF, or CAD)
- 10-yr ASCVD risk >/= 10%
BP goal for all pts
< 130/80 mmHg
Initial drug selection for Non-black pts
thiazide
CCB
ACEi
ARB
Initial drug selection for black pts
thiazide or CCB
Initial drug selection for pts with CKD (all races)
ACEi or ARB
Initial drug selection for pts with diabetes with albuminuria (all races)
ACEi or ARB
How many drugs should a pt be started on in stage 2 HTN when Average SBP and DBP >20/10 mmHg above goal (e.g., 150/90 mmHg)
2
Which antihypertensives have a boxed warning for fetal toxicity
ACEi
ARBs
aliskiren
Pregnant patients with chronic HTN should receive drug treatment if SBP is >/= ___ or DBP is >/= ___
SBP >/= 160
DBP >/= 105
First line treatments for HTN in pregnant pts
labetalol
nifedipine ER
(methyldopa can be recommended but is less effective)
Lisinopril/HCTZ brand name
Zestoretic
Losartan/HCTZ brand name
Hyzaar
Olmesartan/HCTZ brand name
Benicar HCT
Valsartan/HCTZ brand name
Diovan HCT
Benazepril/amlodipine brand name
Lotrel
Valsartan/amlodipine brand name
Exforge
Atenolol/chlorthalidone brand name
Tenoretic
Bisoprolol/HXTZ brand name
Ziac
Triamterene/HCTZ brand name
Maxzide
Dyazide
Thiazide diuretics MOA
inhibit Na reabsorption in the DCTs, causing increased excretion of Na, Cl, water and K
Chlorthalidone doses
12.5-25 mg daily
HCTZ doses
12.5-50 mg daily
Thiazide diuretic CI
Hypersensitivity to sulfonamide-derived drugs
Thiazide diuretic SE
- ↓ electrolytes: K, Mg, Na
- ↑ electrolytes/labs: Ca, UA, LDL, TG, BG
- Photosensitivity
Thiazides are not effective when CrCl < ___
30 mL/min
Which thiazide diuretic is the only one available IV
chlorthalidone
Which drug class should be avoided with thiazide diuretics
NSAIDs (can cause Na & water retention)
Thiazide diuretics can decrease ___ renal clearance and increase risk of toxicity
Lithium
DHP CCBs are used in what conditions
HTN
chronic stable angina
Prinzmetal’s angina
DHP CCB MOA
Inhibit Ca ions from entering vascular smooth muscle and myocardial cells;
this causes peripheral arterial vasodilation
Amlodipine brand name
Norvasc
Nicardipine IV brand name
Cardene IV
Nifedipine ER brand name
Adalat CC
Procardia XL
Which CCB should not be used for chronic hypertension or acute BP reduction in non-pregnant adults (profound hypotension, MI, and/or death has occurred)
Nifedipine IR
CCB SE
Can cause peripheral edema/HA/flushing/palpitations/reflex tachycardia/fatigue (worse with Nifedipine IR, can occur with others), gingival hyperplasia
____ & ____ are considered the safest if a CCB must be used to lower BP in HFrEF
Amlodipine
felodipine
____ are used to prevent peripheral vasoconstriction in Raynaud’s
DHP CCBs (e.g. nifedipine ER)
Clevidipine (Cleviprex) CI
Allergy to soybeans
soy products or eggs
Clevidipine (Cleviprex) warnings
Hypotension
reflex tachycardia
infections
Clevidipine (Cleviprex) SE
Hypertriglyceridemia
A lipid emulsion of Clevidipine (provides __ kcal/mL): it is ____ in color
2
milky-white
Clevidipine max time of use after vial puncture is ___ hours
12
___ are primarily used to control HR in certain arrhythmias (e.g. atrial fibrillation), and sometimes used for HTN and angina
Non-DHP CCBs
Which class of CCBs are more selective for the myocardium
non-DHP CCBs
The decrease in BP produced by non-DHP CCBs is d/t ____ (↓ force of ventricular contraction) and ____ (↓ HR) effects
negative inotropic
negative chronotropic
Diltiazem brand name
Cardiem
Tiazac
Verapamil brand name
Calan SR
non-DHP CCB warnings
HF (may worsen symptoms), bradycardia
non-DHP CCB SE
Edema
constipation (more with verapamil)
gingival hyperplasia
Use caution with CCBs & ____
other drugs that ↓ HR
including BB
digoxin
clonidine
amiodarone
All CCBs are major substrates of CYP450 ___. Check for drug interactions and do not use with ____
3A4
grapefruit juice
Diltiazem and verapamil are substrates and inhibitors of ___ and moderate inhibitors of ___
Pgp
CYP3A4
Patients on diltiazem or verapamil and a statin should use lower doses of which 2 statins
simvastatin
lovastatin
Which 2 classes of HTN meds have been shown to slow the progression of kidney disease in patients with albuminuria
ACEi and ARB
How are ACEi and ARBs beneficial in HF
protect the myocardium from the remodeling effects of Ang II
ACEi MOA
block the conversion of angiotensin I to Ang II, resulting in ↓ vasoconstriction and ↓ aldosterone secretion
ACEi block the degradation of
bradykinin, which is thought to contribute to vasodilatory effects (& SE of dry and hacking cough)
Benazepril brand name
Lotensin
Enalapril brand name
Vasotec
Enalaprilat brand name
Vasotec IV
Lisinopril brand name
Prinivil
Zestril
Quinapril brand name
Accupril
Ramipril brand name
Altace
ACEi BW
Can cause injury and death to developing fetus when used in 2nd and 3rd trimesters
d/c as soon as pregnancy is detected
ACEi should not be used within __ hrs of sacubitril/valsartan (Entresto)
36
ACEi warnings
Angioedema
hyperkalemia
hypotension
renal impairment
bilateral renal artery stenosis (avoid use)
ACEi SE
cough
hyperkalemia
↑ SCr
hypotension
Irbesartan brand name
Avapro
Losartan brand name
Cozaar
Olmesartan brand name
Benicar
Valsartan brand name
Diovan
ARB MOA
Block Ang II from binding to the angiotensin II type-1 (AT1) receptor on vascular smooth muscle, preventing vasoconstriction
Which class of HTN meds does not require a washout period
ARBs
Which class of HTN meds has less cough and angioedema
ARBs
Olmesartan warning
sprue-like enteropathy
Aliskiren CI
Do not use with ACEi or ARBs in patients with diabetes
All RAAS inhibitors ↑ risk for ____
hyperkalemia
ACEi and ARBs can ↓ ____ renal clearance and ↑ the risk of toxicity
lithium
____ is a non-selective aldosterone receptor antagonists that also blocks ___
Spironolactone
androgen
____ is a selective aldosterone antagonist that does NOT exhibit endocrine side effects
Eplerenone
Spironolactone brand name
Aldactone
Amiloride and triamterene BW
hyperkalemia (K > 5.5 mEq/L) – more likely in patients with diabetes, renal impairment, or elderly patients
K-sparing diuretics CI
Do not use if
hyperkalemia
severe renal impairment
Addison’s disease (spironolactone)
K-sparing diuretics SE (all meds)
Hyperkalemia, ↑ SCr, dizziness
Spironolactone SE
gynecomastia
breast tenderness
impotence
Which BB should be used if treating chronic HF
Bisoprolol
carvedilol
metoprolol succinate
BB with intrinsic sympathomimetic activity (ISA) like ____ do not ↓ HR to the same degree as BB without ISA and are not recommended in post-MI pts
acebutolol
Atenolol brand name
Tenormin
Esmolol brand name
Brevibloc
Esmolol formulation
injection
Metoprolol tartrate brand name
Lopressor
Metoprolol succinate ER brand name
Toprol XL
Beta-blockers BW
Do not d/c abruptly
gradually taper dose over 1-2 weeks to avoid acute tachycardia
HTN and/or ischemia
BB warnings
- Use caution in pts with diabetes: can worsen hyperglycemia or hypoglycemia and mask hypoglycemic symptoms
- Caution with bronchospastic diseases (e.g. asthma, COPD), Beta-1 selective preferred
- Caution in Raynaud’s/other peripheral vascular diseases, and HF
Beta-blockers side effects
Bradycardia
fatigue
hypotension
dizziness
depression
impotence
cold extremities (can exacerbate Raynaud’s)
Which 2 BB should be taken with or immediately following food, while the others can be taken without regard to food
Lopressor (metoprolol tartrate) Toprol XL (metoprolol succinate)
IV:PO ratio for metoprolol tartrate
1:2.5
What are the beta-1 selective drugs
Remember: AMEBBA
- Atenolol
- Metoprolol
- Esmolol
- Bisprolol
- Betaxolol
- Acebutolol
Nebivolol brand name
Bystolic
Which BB is a B1 selective blocker with Nitric oxide-dependent vasodilation
Nebivolol
Which BB are B1 and B2 non-selective
Propranolol
Nadolol
Non-selective BB are used in
portal HTN
Propranolol brand name
Inderal LA
Inderal XL
Nadolol brand name
Corgard
Propranolol has high __ solubility & therefore causes more ____ SE, but this makes it more useful in conditions like ____
lipid
CNS
migraine ppx
Which BB are non-selective BB and Alpha-1 blockers
Carvedilol
labetalol
Carvedilol brand name
Coreg
Coreg CR
How should all forms of carvedilol be taken
with food
T/F: carvedilol dosing conversions are 1:1
false
Labetalol SE
dizziness
BB can decrease ___ secretion
insulin
____ is commonly used for resistant HTN and in pts who cannot swallow since it’s available as a patch
Clonidine
Clonidine brand name for HTN
Catapres
Catapres-TTS patch
Clonidine brand name for ADHD
Kapvay
Guanfacine ER brand name for ADHD
Intuniv
Methyldopa (Centrally-acting alpha-2 adrenergic agonist) CI
concurrent use with MAOi
Methyldopa warning
risk for hemolytic anemia
Centrally-acting alpha-2 adrenergic agonists warning
Do not d/c abruptly (can cause rebound HTN);
must taper over 2-4 days
Centrally-acting alpha-2 adrenergic agonists SE
Dry mouth
somnolence
fatigue
dizziness
constipation
↓ HR
hypotension
Methyldopa SE
hypersensitivity rxn [e.g. drug-induced lupus erythematosus (DILE)]
Clonidine patch is applied how many times per week
once
Hydralazine warning
DILE
Hydralazine SE
Peripheral edema
HA
flushing
palpitations
reflex tachycardia
Minoxidil SE
Fluid retention
tachycardia
hair growth
Hypertensive crises is BP >/=
180/120 mmHg
patient has acute target organ damage (e.g. encephalopathy, stroke, acute kidney injury, acute coronary syndrome, aortic dissection, acute pulmonary edema)
Hypertensive emergency
How is hypertensive emergency treated
IV meds
chlorothizaide
clevidipine
diltiazem
enalaprilat
esmolol
hydralazine
labetalol
metoprolol tartrate
nicardipine
nitroglycerin
nitroprusside
propranolol
verapamil
In hypertensie crisis, Decrease BP by no more than __% (within first __), then if stable, decrease to ~160/100 mmHg in the next 2-6 hrs
25
hour
How is hypertensive urgency treated
any oral med that has a short onset of action
Hypertensive urgency- decrease BP gradually over ___-___ hrs
24-48