Preload and afterload

Question 1

Preload

Answer 1

= ventricular EDV

Question 2

Afterload

Answer 2

= mean arterial pressure (proportional to peripheral resistance)

Question 3

VEnodilator

Answer 3

(e.g. nitroglycerin) lower prEload

Question 4

VAsodilator

Answer 4

(e.g. hydrAlazine) lower Aferload (arterial)

Question 5

Preload increases with

Answer 5

1) exercise (slightly)
2) increased blood volume (overtransfusion)
3) excitement (increased sympathetic activity)