Cardiac Overview Flashcards
1
Q
What are 3 things that affect vessel wall friction?
A
Increase (length and fluid viscosity)
decrease (radius of vessel)
2
Q
Contraction of ventricles, aortic and pulomnary valves open
A
systole
3
Q
relaxation of ventricles, bicuspid/tricuspid open
A
diastole
4
Q
Compare and contrast stable, unstable and prinzmetal angina.
A
Stable - w/exertion, relieved by rest, nitro
Unstable - at rest, relieved by nitro
Prinzmetal - rest - vasospasm, relieved by nitro or Ca channels blockers
5
Q
What time frame distinguishes MI from angina?
A
If chest pain has occured longer than 20 minutes then an MI has occured.
6
Q
45% of MI are due to occlusion of this artery
A
LAD
