Common blood pressure equations

Question 1

Cardiac output

Answer 1

CO=SV*BP

Ave SV = 0.08L
Ave BP = 70bpm
Ave CO = 5.6L/minute

Question 2

Stroke volume

Answer 2

EDV-ESV

Ave SV = 0.08L

Question 3

Mean arterial pressure (MAP)

Answer 3

MAP=CO*TPR

MAP=2/3 (Diast volume) + 1/3 (Syst volume)

Question 4

Ejection fraction (Ef)

Answer 4

Ef=SV/EDV
Or
Ef=(EDV-ESV)/EDV

Ave EDV = 120mL
Ave ESV = 50mL
Ave Ef = ~60% (50% is lowest physiological value)

Question 5

% distribution of blood to cerebellum circulation

Answer 5

15%

Question 6

% distribution of blood to the coronary circulation

Answer 6

5%

Question 7

% distribution of blood to renal circulation

Answer 7

25%

Question 8

% distribution of blood to GIT circulation

Answer 8

25%

Question 9

% distribution of blood to skeletal muscles

Answer 9

25%

Question 10

% distribution of blood to skin

Answer 10

5%