Diuretics, ACEs, ARBs, CCBs Flashcards
hydrochlorothiazide, indapamide, chlorothiazide, chlorthalidone, methylclothiazide
thiazide diuretics
furosemide, bumetanide, ethacrynic acid, torsemide
loop diuretics
amiloride, spironolactone, triamterene
potassium-sparing diuretics
prototype: thiazide
hydrochlorothiazide
prototype: loop
furosemide
prototype: potassium-sparing (2)
spironolactone & triamterene
which diuretic acts in the ascending loop of Henle to inhibit sodium and chloride reabsorption?
loop diuretics
indications for loop diuretics (4)
- edema r/t HF
- edema r/t renal disease or liver failure
- hypertension that cannot be control with thiazide or potassium sparing diuretics
- patients who need diuretic therapy but have low renal blood flow
ototoxicity is a side effect in which diuretic class?
loop diuretics
electrolytes excreted with the majority of diuretics
sodium, chloride, potassium, hydrogen, calcium, magnesium
most powerful diuretic class?
loop diuretics
diuretic class most commonly used in HF
loop diuretics (furosemide)
which diuretic class is effective in treating pulmonary edema & mod./severe CHF
loop diuretics
adverse effects with loop diuretics include (5)
- electrolyte imbalances (hypokalemia, hyponatremia, hypochloremia, hypomagnesemia, hypocalcemia)
- dehydration
- hypovolemia/hypotension
- hyperuricemia
- ototoxicity
drug interactions with loop diuretics (6)
which one is a positive interaction?
- potassium sparing diuretics (positive, helps counterbalance K+ loss)
- NSAIDs
- digoxin
- ototoxic drugs
- lithium
- antihypertensive drugs (hypotension)
which class of medications can blunt loop diuretic effects?
NSAIDs
monitoring for loop diuretics
- monitor BP & pulse
- daily weights
- intake and output
- monitor for decreased edema
which diuretic acts in the distal convoluted tubule, decreasing reabsorption of sodium and increasing sodium & water excretion into the urine?
thiazides
which diuretic class is associated with HYPERcalcemia?
thiazides
indications for thiazide diuretics (2)
- essential HTN
- edema in mild HF
which diuretic class is ineffective in patients with eGFR < 30-40?
thiazide
if eGFR < 30-40, which diuretic class should be used?
furosemide
thiazides should be used in caution with patients suffering what kind of impairments?
renal and liver
the eGFR in which thiazides have their best efficacy
when eGFR is normal (> 90 mL/min), thiazides are most effective
- These drugs are ineffective when GFR is < 15-20 mL/min
the ability of thiazides to promote diuresis is dependent on what?
adequate kidney fx
adverse effects for thiazide diuretcs (6)
- hypokalemia
- hypomagnesemia
- HYPERcalcemia
- HYPERglycemia
- HYPERuricemia
- HYPERlipidemia
which diuretic should be used cautiously with gout?
thiazide
which diuretic should be used cautiously with diabetes?
thiazide
drug interactions with thiazide diuretics (5)
which one is a positive interaction?
- potassium sparing diuretics (positive, helps counterbalance K+ loss)
- NSAIDs
- digoxin
- lithium
- antihypertensive drugs (hypotension)
drug interaction differences between loop & thiazide diuretics?
thiazides CAN be combined with ototoxic agents without increasing risk of hearing loss
In treatment of hypertension, what determines the use of a loop diuretic vs thiazide diuretic?
Loop diuretic will only be used in place of thiazide diuretic when HTN is uncontrolled with other diuretics
diuretic class most commonly used in HTN
thiazide
monitoring for thiazide diuretics
- monitor BP & pulse
- daily weights
- intake and output
- monitor for decreased edema
which diuretic acts on the late distal tubule and collecting duct?
potassium-sparing (triamterene)
which diuretic blocks the action of aldosterone?
what does this cause?
potassium-sparing (spironolactone)
–> causes retention of potassium & increased excretion of sodium
indications for potassium-sparing diuretics (3)
HTN, edema, HF
adverse effects of potassium-sparing diuretics (2)
- hyperkalemia
- endocrine effects (gynecomastia & impotence)