Hypertension Drugs Flashcards
loop diuretics MOA
- inhibit Na/K/2Cl symporter in loop of henle
what HTN drugs can you treat heart failure with
- diuretics - ACEi/ARB - beta blockers - hydralazine + nitrates
angioedema is likely to affect which race
- african Americans - 3x more likely
how beta blockers exacerbate asthma/COPD
- nonselective beta blocker that acts on B2 - causes bronchoconstriction and less O2 into the lungs
loop/thiazide diuretic toxicities
how
- hypokalemia
- increased Na+ from upstream drives loss of K+ in collecting duct
drugs that reduce blood volume only
- diuretics
drugs that reduce cardiac output and vascular resistance
- sympatholytics
furosemide during pregnancy is what class
- C
how NSAIDS increase hypertension
- inhibit phase II glucouronidation of aldosterone - prostaglandin E2 -> vasodilates - salt water retention -> increased blood volume
beta blockers pregnancy category in 1st trimester
- B/C
what type of drug is hydrochlorothiazide
- thiazide diuretic
Nifedipine is what kind of drug
- Ca2+ channel blocker
adverse effects of Ca2+ channel blockers
- drug-induced gingival enlargement
what is the Ca2+ channel blocker of choice during pregnancy
- Nifedipine
toxicities of beta blockers
- increase/decrease blood sugar (be careful with diabetics - exacerbate asthma/COPD
_______ have been documented to decrease mortality in patients with heart failure
- beta blockers
MOA K+ opener drugs
- hyperpolarize vascular smooth muscle cells - inhibit contraction
what type of drug is Eplerenone
- K+ sparing diuretic aldosterone antagonist
result of hyperkalemia as toxicity of ACE inhibitors and ARBs
- risk of arrhythmias
MOA of alpha 2 agonists
- activate alpha 2 receptor which leads to vasorelaxation
in a closed circulatory system, BP is affected by
- cardiac output - vascular resistance - blood volume
drugs that reduce vascular resistance only
- vasodilators
MOA of vasodilators
- relax vascular smooth muscle - reduce BP
result of hypokalemia from loop/thiazide toxidies
- hyperpolarization -> various arrhythmias - delayed repolarization -> reentry rhythms
drugs that reduce blood volume and vascular resistance
- anti-angiotensin drugs
thiazide diuretics MOA
- inhibit Na/Cl symporter in distal convoluted tubule
Captopril and Lisinopril are - pril
- ACE inhibitors
MOA of anti-angiotensin drugs
- reduce vasoconstriction and water retention
how do ACE inhibits produce angioedemia
- affect bradykinin metabolism causing - endothelial cell leakage in lungs and other capillaries
what HTN drugs can you treat diabetes (nephropathy) with
- ACEi/ARBs
K+ sparing diuretic adverse effects
- gynecomastia
what type of drug is clonidine
- alpha 2 agonist
adverse affects of loop diuretics
- serum hypokalemia - serum alkalosis
______ are less likely to induce reflex tachycardia than do ______
- beta blockers - vasodilators
what type of drug is Triamterene
- K+ sparing diuretic epithelial Na channel inhibitor
Losartan and Valsartan are - sartan
- angiotensin receptor blockers
adverse effects of thiazide diuretics
- serum hypokalemia - serum alkalosis
furosemide and torsemide are what kind of drug
- loop diuretics
MOA of ARBs
- compete for binding on angiotensin II receptor with angiotensin II
what is polypharmacy
- using three drugs to control hypertension
what is the drug of choice for hypertension during pregnancy
- methyldopa
ACE inhibits and ARBs in 2nd and 3rd trimester
- fetal hypotension - renal failure
alpha 1 antagonist category in pregnancy
- C
what type of drug is chlortalidone
- thiazide diuretic
what kind of drug is diazoxide
- K+ opener
result of diuretics and NSAIDS
- increase hypertension
ACE inhibits and ARBS toxicities
- dry cough - angioedema - hyperkalemia
toxicities of alpha 1 antagonists
- 1st dose postural/orthostatic hypotension - occurs after first dose - does not reoccur with subsequent doses
MOA of K+ sparing diuretics
- inhibit epithelial Na+ channel in collecting duct
spironolactone in pregnancy is what class
- D
what type of drug is spironolactone
- K+ sparing diuretic aldosterone antagonist
MOA of sympatholytics
- reduce BP by inhibiting SNS
diuretics drug interactions
- diuretics and NSAIDS
ACE inhibitors and ARBS in first trimester
- teratogenic
what HTN drugs can you treat angina with
- beta blockers - Ca2+ blockers
what HTN drugs can you treat benign prostatic hyperplasia with
- alpha 1 antagonist
MOA of hydralazine
- increases cGMP in vascular smooth muscle - induces vasodilation
MOA of beta blockers
- decrease heart rate
what type of drug is prazosin
- alpha 1 antagonist on vascular smooth muscle
hydrochlorothiazide in pregnancy is what class
- D
which drug is associated with gynecomastia why
- spironolactone - acts like estradiol
mechanism of action of diuretics
- inhibit reuptake of Na+ and H2O
MOA of alpha 1 antagonists
- inhibit smooth muscle contraction
is angioedema reversible?
- rapidly reversible
MOA of Ca2+ channel blockers
- reduce smooth muscle contraction strength
beta blockers pregnancy category in 2nd/3rd trimester
- D
alpha 2 antagonists category in pregnany
- B/C