Heart Failure Management Flashcards
why we give diuretics ?
it decrease the preload and torsomid has Anti fibrotic effect
whats the long standing effect of the diuretics ?
it decrease the renal blood flow and causes estimation odf the renin angiotensin activity
thiazides diuretics could why it doesn’t use any more ?
and what it type
it causes dermatological cancer
and we have Moduritcs and natriuretic which most often use because it has vasodilator effect
what’re ht most characteristic features of the thiazide ?
it has diuretics effect
and vasodilator effect
thiazide mechanism of action
inhibiting reabsorption of sodium (Na+) and chloride (Cl−) ions from the distal convoluted tubules in the kidneys by blocking the thiazide-sensitive Na+-Cl− symporter.
Mechanism of action of the spironolactone ?
a specific pharmacologic antagonist of aldosterone, acting primarily through competitive binding of receptors at the aldosterone-dependent sodium-potassium exchange site in the distal convoluted renal tubule.
what’re the side effect of the spironolactone ?
- it should taken with the meal so we can avoid the esophageal irritation
- it cause gynecomastia and impatience
why we give spironolactone of HF pt and causes gynecomastia and impotence and irritation ?
because
- it k sparing
- and increase the 5 years survival because it works against the aldosterone which is potent fibrosis
mechanism of action of the digoxin ?
-inhibition of the sodium potassium adenosine triphosphatase (Na+/K+ ATPase), mainly in the myocardium
- decrease the heart rate
- increase the automaticity of the heart
- increase the well being so decrease the days of hospitalization
complication of digoxin ?
1- arrhythmia 2- nephrotoxic 3-neusea and vomiting 4- gynecomastia 5-xerphilia
does beta blocker improve 5 years survival ?
yes, because its affect the sympathetic system and antiplatlete and on renin