# Equations Flashcards

What is the equation to calculate cardiac output

CO = HR x SR

Heart rate x stroke volume

Define stroke volume

Volume of blood pumped by the left ventricle per beat

What is the equation to calculate stroke volume

EDV - ESV

End diastolic volume - end systolic volume

What is stroke volume measured in

mL/beat

What is stroke volume usually

60-130 mL/beat

What is cardiac output measured in

L/min

What is the equation for OHM’s law

Flow = pressure / resistance

What is the equation for pulse pressure

Systolic - diastolic pressure

What is pulse pressure measured in

mmHg

What is the equation for blood pressure

CO (cardiac output) x total peripheral resistance

What is blood pressure measured in

mmHg

What is the equation for mean arterial pressure (MAP)

Diastolic pressure + 1/3 pulse pressure

What is the equation for Poiseuille’s Law

Flow = radius to power of 4