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43 Cards in this Set
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Thiazide diuretic
treatment |
*HTN
*Edema r/t mild to mod hypertension, hepatic or renal disease, corticosteroid or estrogen therapy *prevention of calcic renal calculi *paradoxically decreases urine output in diabetes insipidus |
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Thiazide diuretics
pharmacokinetics |
Absorbed rapidly from GI tract, excreted in urine
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Thiazide diuretics
pharmacodynamics |
Prevent sodium reabsorption by kidneys. As sodium is excreted, it pulls water along with it. Also causes excretion of K+, bicarb
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Thiazide diuretics
contraindications |
Pts with sulfa allergies can have a reaction
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Thiazide diurectics
considerations |
*may cause hyperglycemia
*will reduce K+ levels *may increase lipid levels *may increase uric acid levels |
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Thiazide diurectics
adverse reactions |
*reduced blood volume
*orthostatic hypotension *hyponatremia *hypokalemia |
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Thiazide diuretics
drug interations |
*may increase lithium levels
*may increase response to skeletal muscule relaxants *NSAIDs may reduce effectiveness of thiazide diuretics |
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Thiazide diuretics
common drugs |
*hydrochlorothiazide (HydroDIURIL, HCTZ)
*chlorothiazide (Diuril) *inapamide (Lozol) |
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Loop diuretics
therapy |
*Edema r/t HF,renal and hepatic disease
*HTN |
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Loop diuretics
pharmacokinetics |
*absorbed well with rapid distribution
*highly protein-bound *metabolized in liver (except furosemide) *excreted by kidneys |
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Loop diuretics
pharmacodynamics |
Act primarily on the ascending loop of Henle to increase secretion of sodium,chloride, and water. May also inhibit their reabsorption.
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Loop diuretics
contraindications |
*hypersensitivity
*pts with sulfa allergies? |
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Loop diuretics
adverse reactions |
*hypovolemia
*orthostatic hypertension *hypokalemia *hypochloremia *hyponatremia *hypocalcemia *hypomagnesemia |
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Loop diuretics
considerations |
*ototoxic, especially in pts with renal insufficiency
*may cause hyperglycemia *may cause increased uric acid levels |
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Loop diuretics
drug interactions |
*increased risk of ototoxicity when taken with aminoglyucosides and cisplatin
*reduce effectiveness of oral antidiabetics *may increase risk of lithium toxicity *when taken iwth cardiac glycosides, increased risk of lyte imbalnces et resulting arrhythmias. |
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Loop diuretics
common drugs |
*bumetanide (Bumex)
*furosemide (Lasix) *torsemide (Demadex) |
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Potassium-sparing diuretics
treatment |
*edema
*diuretic-induced hypokalemia in tps with heart failure *cirrhosis *nephrotic syndrome *heart failure *HTN |
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Potassium-sparing diuretics
pharmacokinetics |
*only po, absorbed in GI tract
*metabolized in liver, excreted in urine and bile |
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Potassium-sparing diuretics
pharmacodynamics |
*Acts in distal tubule to increase Na and H2O secretion. Also increases Chl and Ca excretion.
*Decreases K and H ions. |
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Potassium-sparing diuretics
adverse reaction |
hyperkalemia
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Potassium-sparing diuretics
considerations |
*Do not use in pts with renal insufficiency or hyperkalemia
*may increase uric acid levels *pt should avoid excess k in their diet |
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Potassium-sparing diuretics
common drugs |
spironolactone (Aldactone)
amiloride (Midamor) triamterene (Dyrenium) |
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Calcium channel blockers
treatment |
*prevention of angina
*HTN *dysrhythmia |
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Calcium channel blockers
pharmacokinetics |
orally, absorbed quickly.
metabolized rapidly in liver |
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Calcium channel blockers
pharmacodynamics |
Prevent passage of Ca+ across membranes of myocardial et vascular smooth-muscle cells. This causes dilation of the coronary et peripheral arteries. Some also slow conduction thru the SA and AV nodes.
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Calcium channel blockers
adverse reactions |
orthostatic hypotension
heart failure hypotension arrhythmias (diltiazsem and verapamil) |
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Calcium channel blockers
considerations |
*d/n take with grapefruit juice
*Ca and vit D reduce effectiveness |
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Calcium channel blockers
drug interactions |
Verapamil and diltiazem increase the risk of dig toxicity, enhance the action of carbamazepine, and may cause myocardial depression
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Calcium channel blockers
common drugs |
Selective for blood vessels
amlodipine (Norvasc) nifedipine (Procardia) Nonselective, for both blood vessels and heart diltiazem (Cardizem) verapamil |
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ACE inhibitors
treatment |
*HTN
*heart failure or following an MI *fluid retention |
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ACE inhibitors
pharmacokinetics |
Absorbed from GI tract, metabolized in liver, excreted by kidneys
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ACE inhibitors
pharmacodynamics |
Interrupts the renin-angiotensin-aldosterone system by preventing the conversion of angiotensin I to angiotensin II and the subsequent secretion of aldosterone. Less angiotensin II=arteriole dilation, decreased preipheral vascular resistance. Less aldosterone-increased excretion of Na and H2O.
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ACE inhibitors
adverse reactions |
*headache, fatigue
*persistent cough *angioedema *GI reactions *hyperkalemia |
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ACE inhibitors
drug interactions |
*can increase serum lithium levels
*NSAIDs decrease effectiveness, increase renal dysfunction |
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ACE inhibitors
contraindications |
*history of angioedema
*pts with heart failure taking a potassium-sparing drug *pregnancy and lactation *pts with renal insufficiency |
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ACE inhibitors
considerations |
African-Americans tend to experience reduced efficacy and higher incidence of angioedema
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ACE inhibitors
common drugs |
benazepril (Lotensin)
captopril (Capoten) enalapril (Vasotec) lisinopril (Prinivil, Zestril) quinapril (Accupril) ramipril (Altace) |
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Angiotensin II receptor blockers
treatment |
*HTN
*management of heart failure |
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Angiotensin II receptor blockers
pharmacokinetics |
vary
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Angiotensin II receptor blockers
pharmacodynamics |
Block the binding of angiotensinII at the AT1 receptor, preventing angiotensin II from exerting its vasoconstricting properties and from promoting the excretion of aldosterone.
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Angiotensin II receptor blockers
adverse reactions |
*headache and fatigue
*cough and tickling in the throat *angioedema *GI reactions *increased serum K levels |
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Angiotensin II receptor blockers
drug interactions |
*fluconazole will increase blood levels of losartan
*NSAIDs reduce antihypertensive effects *rifampin will decrease the antihypertensive effect of losartan |
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Angiotensin II receptor blockers
common drugs |
candesartan (Atacand)
irbesartan (Avapro) losartan (Cozaar) olmesartan medoxomil (Benicar) valsartan (Diovan) |