ch22 treatment of heart failure (lesson 4)

Question 1

CHF

Answer 1

heart cant pump enough blood to supply body with O2 + nutrients

when untreated cardiac muscles = hypertrophy

Question 2

CHF how body responds

Answer 2

release NE + E = vasoconstriction + ^ HR

release renin which converts angiotensin 1 to 2

release aldosterone and ADH = ^ BV + pressure

Question 3

CHF diuretic therapy

Answer 3

gets rid of Na and H2O through kidneys = reduces swelling and produces vasodilation effect

Question 4

CHF thiazide diuretics

AE

Answer 4

block Na reabsorption

used in mild CHF

may cause _ K

AE - nausea, hypokalemia

Question 5

CHF loop diuretics (organic acids)

Answer 5

potent

used in sever CHF

effects last 4-8 hours

Question 6

CHF vasodilator therapy

AE

Answer 6

dilates blood vessels

lowers peripheral resistance and BP

AE - nausea, postural hypotension

Question 7

Venodialtor example

AE

Answer 7

NITRO

AE - headache, dizziness

Question 8

adrenergic beta blockers in CHF

preferred BB

Answer 8

block beta 1 receptors on heart (_HR) + kidneys (_renin)

metoprolol

Question 9

Cardiac glycoside Digoxin CHF

Answer 9

increases myocardial contractions

stimulates vagus nerve

Question 10

best way to treat mild CHF

severe?

Answer 10

diuretic therapy and _ sodium intake

same steps but administer ACEIs or ARBs