Terms

Question 1

Cardiac Output

define

Answer 1

Cardiac output—volume of blood ejected from heart/min

Question 2

Ejection fraction

define

Answer 2

fraction of blood ejected with each beat

Normal 60% to 70%

Question 3

Preload

define

Answer 3

Volume of blood in ventricle prior to contraction (LVEDV/LVEDP)

Question 4

Preload
Frank-Starling law

define

Answer 4

Increased stretch = increased volume

Stretch is within physiological limits

Example = balloon

Question 5

Afterload

define

Answer 5

Pressure or resistance against flow

Question 6

Afterload

Systemic vascular resistance
means?

Answer 6

Force overcome by the right ventricle upon contraction

Example = opening door against wind

Question 7

Contractility

define

Answer 7

Force of ventricular contraction

How well the heart is pumping

Question 8

Systemic Vascular Resistance

define

Answer 8

Peripheral vascular resistance

Diameter of blood vessels

Question 9

Cardiac Output Versus Index

normal range and formula

Answer 9

Normal CI= 2.6-4.2 L/min/m2

CI = CO ÷ body surface area

Calculated on the computer after entering patient’s height and weight