Equations

Question 1

Equation for pulsatility index (LVAD)

Answer 1

Qmax-Qmin/Qaverage x10

Question 2

Equation for Fick

Answer 2

CO = VO2/(Ca-Cv)

CO = oxygen consumption / arteriovenous O2 difference

Question 3

What is the oxygen carrying capacity equation?

Answer 3

CaO2 = 1.34 * [Hgb] * (SaO2/100) + 0.003 * PaO2

Question 4

Law of Laplace equation

Answer 4

wall stress = pressure (P) x radius (R) / 2 x wall thickness (W).

Stress = PR/2W