MI Flashcards
1
Q
Changes seen in <4 hrs?
A
None
2
Q
Risk at <4 hrs?
A
Cardiogenic shock (massive infarction), CHF, and arrhythmia
3
Q
Dark discoloration?
A
4-24 hrs
4
Q
Coagulative necrosis (RBCs on histo)?
A
4-24 hrs
5
Q
Risk at 4-24 hrs?
A
Arrhythmia
6
Q
Neutrophil infiltration?
A
1-3 days
7
Q
Macrophage infiltration?
A
4-7 days
8
Q
Risk after 1-3 days?
A
Fibrinous pericarditis–chest pain w/ friction rub
9
Q
Yellow pallor?
A
1-3 days, 4-7 days
10
Q
Risk of rupture of ventricular free wall leading to tamponade?
A
4-7 days
11
Q
Risk of IV septum rupture leading to shunt?
A
4-7 days
12
Q
Risk of papillary muscle rupture?
A
4-7 days
13
Q
Phase when wall is weakest?
A
Macrophage phase: 4-7 days
14
Q
Gross has red border with granulation tissue?
A
1-3 weeks
15
Q
Histo shows fibroblasts, collagen, and blood vessels?
A
1-3 weeks
