Equations Flashcards

1
Q

Equation for pulsatility index (LVAD)

A

Qmax-Qmin/Qaverage x10

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2
Q

Equation for Fick

A

CO = VO2/(Ca-Cv)

CO = oxygen consumption / arteriovenous O2 difference

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3
Q

What is the oxygen carrying capacity equation?

A

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

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4
Q

Law of Laplace equation

A

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

Stress = PR/2W

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