Author Question: Right-ventricular afterload can be estimated by using which equation? a. (MAP) (SV) (0.00136) ... (Read 47 times)

joesmith1212 · **on:** Jul 16, 2018

Right-ventricular afterload can be estimated by using which equation?

a. (MAP) (SV) (0.00136) c. (MAP MRAP/CO) 80
b. (MPAP) (SV) (0.00136) d. (MPAP MLAP/CO) 80

Question 2

Which of the following formulas represents cardiac output (CO)?

a. CO = cardiac index body surface area
b. CO = stroke volume body surface area
c. CO = heart rate stroke volume
d. CO = oxygen consumption (CAO2 CaO2)

xoxo123 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: C
The right-ventricular afterload is the resistance the right ventricle must overcome to eject blood and is estimated from calculations of pulmonary vascular resistance, which is expressed as mean pulmonary artery pressure (MPAP) minus mean left atrial pressure (MLAP) divided by cardiac output or pulmonary blood flow multiplied by a factor of 80.

Answer to Question 2

ANS: C
Cardiac output can be calculated by multiplying the heart rate by the stroke volume.