The relationship between CVP, MAP, SVR, and CO is:
SVR = (MAP - CVP)/CO*80 or CO = (MAP - CVP)/SVR*80
The equation can also be written using the mean pulmonary pressure (MPAP), pulmonary artery wedge pressure (PAWP), and pulmonary vascular resistance (PVR):
PVR = (MPAP - PAWP)/CO *80 or CO = (MPAP - PAWP)/PVR*80
These equations are analogous to Ohm’s law for electrical circuits. In an electrical system, current (cardiac output) is proportional to the voltage gradient (the pressure gradient of MAP-CVP or MPAP-PAWP) and inversely proportional to resistance (SVR or PVR). 80 is the conversion factor to express SVR or PVR in dynes/sec/cm^5 rather than Wood units.
Using the data from the question stem: CO = 72/1,150*80= 5 Liters/minute
References:
Miller, RD. Miller’s Anesthesia, 8th edition. Chapter 45: Cardiovascular Monitoring.