what does MAP stand for

mean arterial pressure

what is the MAP equation

cardiac output x total peripheral resistance and cardiac output itself = heart rate x stroke volume MAP = HR x SV x TPR

what is pulse pressure equal to?

= systolic - diastolic

what is considered the bedside estimate

MAP ~ diastolic + 1/3 of pulse pressure ex. BP 120/80 → pulse pressure = 40 → MAP ≈ 80 + 13.3 ≈ 93 mmHg.

after calculation, why does MAP sit closer to diastolic than systolic?

because the heart spends more time in every cycle in diastole

when blood volume goes UP, what happens to MAP? why?

MAP goes UP. more volume means more stroke volume

when heart rate goes UP, what happens to MAP? why?

MAP goes UP. because HR is part of cardiac output

when stroke volume goes UP, what happens to MAP? why?

MAP goes UP. because SV is part of cardiac output

when vasoconstriction occurs, what happens to MAP? why?

MAP goes UP. because this resullts in smaller radius, meaning higher resistance (TPR)

when vasodilation occurs, what happens to MAP? why?

MAP goes DOWN. because the radius is lower meaning lower resistance