On Test Flashcards
1
Q
P wave
A
Atrial depolarization
2
Q
PR interval
A
AV conduction time
0.12-0.20
3
Q
QRS
A
Ventricular depolarization
0.06-0.10
4
Q
T wave
A
Ventricular repolarization
5
Q
QT interval
A
Time of ventricular depolarization and repolarization (0.36-0.44)
6
Q
Cardiac output
A
4-8 L/min
HR x SV
Pint of blood ejected by ventricles per minute
7
Q
How to increase CO
A
Positive inotrope
Fluids
8
Q
Stroke volume
A
50-100mL / beat
Three measure contribute
1) preload
2) after load
3) contractility
9
Q
Preload
A
Myocardial fiber length at end of diastole
10
Q
After load
A
Resistance the heart ejects during systole
