Useful Equations

Question 1

Systemic Vascular Resistance

Answer 1

Not just BP = CO x SVR, to solve for SVR must use conversion factor to end up in dyne.s.cm-5 (instead of mmHg and L/min):

SVR = [(MAP-CVP)/CO] x 80

Can substitute RA pressure for CVP

Question 2

Pulmonary Vascular Resistance

Answer 2

PVR = [(MPAP - LAP)/CO] x 80

Usually 1/10th of SVT 50-150 dyne.s.cm-5