Formulas

Question 1

Cardiac output
What is it?
Formula?

Answer 1

• amount of blood pumped out of the left ventricle in a minute
• CO = HR x SV(strike volume)

Question 2

Cardiac index
- what is it?
- formula?

Answer 2

• calculation of CO (cardiac output) divided by the persons body surface area (BSA)
• CI = CO / BSA

Question 3

Stroke volume
- what is it?
- what is it determined by?
- formula?

Answer 3

Volume of blood ejected with each beat
- preload, afterload and contractility
- SV = EDV ( end diagnostic volume) - ESV ( end systolic volume)