Important Equations

Question 1

Cardiac output

Answer 1

Cardiac output= stroke volume x heart rate

CO = SV x HR

Question 2

Blood pressure

Answer 2

Blood pressure = cardiac output x total peripheral resistance

BP = CO x TPR

Question 3

Pulse pressure

Answer 3

Pulse pressure = Systolic pressure - diastolic pressure

Question 4

*mean arterial pressure

Answer 4

Mean arterial pressure = Diastolic pressure + 1/3 pulse pressure

MAP = Diastolic P + 1/3 PP

Question 5

Pouisseile’s law

Answer 5

Flow= pi x r^4 / 8 x length x viscosity

Question 6

Ohms law

Answer 6

Flow=pressure gradient/resistance

I = V/R