ANP /BNP and heart failure Flashcards
1
Q
what is heart failure caused by
A
activation of sympathetic nervous system
RAAS system
2
Q
what does the activation of the sympathetic nervous system and raas system cause
A
vasoconstriction and sodium and water retention
3
Q
what does vasoconstriction and sodium/water retention cause the atrial to do
A
atrial increased stretching
4
Q
how hormones do the heart cells release due to atrial increased stretching
A
ANP and BNP
5
Q
what does ANP and BNP do in response to atrial wall stretching
A
increase GFR, vasodilation; decreased renin
6
Q
what does increased gfr; vasodilation; and decreased renin do to aldosterone and angiotensin 2
A
decreases aldosterone and angiotensin 2
7
Q
what does a decrease in aldosterone and angiotensin 2 cause
A
decreased blood pressure
natriuresis
diuresis
