Acute Myocardial Infarction

Question 1

What is the “wavefront” hypothesis?

Answer 1

In coronary artery occlusion, myocardial necrosis starts in the endocardial surface and proceeds towards the epicardium in an expanding wavefront

Question 2

What stain stains vital tissue brick-red?

Answer 2

Triphenyltetrazolium

Question 3

In an MI what occurs to the Q wave?

Answer 3

Q waves are large and wide acting

Question 4

What are three important principles in reperfusion?

Answer 4

1. ) Reduces infarct mass
2. ) Salvages mechanical and electrical function
3. ) Improves survival following MI