Cardiac Output Flashcards
0
Q
What is average stroke volume?
A
70 ml
1
Q
What is stroke volume?
A
Amount of blood moved every time the heart pumps
2
Q
How do you calculate cardiac output?
A
HR x SV
3
Q
What is ejection fraction?
A
Percentage of blood volume moved when heart pumps
4
Q
What does stroke volume depend on?
A
Pre load
Myocardial contractility
After load
5
Q
What is preload?
A
Amount of blood available to be pumped
6
Q
What is myocardial contractility?
A
Ability of heart to contract
7
Q
What is afterload?
A
Peripheral vascular resistance, the force against which the heart pumps
8
Q
How do you calculate blood pressure?
A
Cardiac output x peripheral vascular resistance
9
Q
How do you calculate mean arterial pressure?
A
Diastolic pressure + 1/3(systolic - diastolic)
10
Q
What percent of o2 is transported by hemoglobin?
A
97%
