Unit 8 - Cardiac & Skeletal Flashcards
1
Q
When does troponin elevate
A
3-8 hours
2
Q
When does troponin peak by
A
24 hours
3
Q
How long does troponin stay elevated for
A
10-14 days
4
Q
Fraction of cardiac muscle CK-MM percent
A
70-80%
5
Q
Fraction of cardiac muscle CK-MB percent
A
20-30%
6
Q
How much CK-MB does skeletal muscle produce?
A
Insignificant amount, unless in extreme damage
7
Q
When does CK-MB elevate
A
4-6 hours
8
Q
When does CK-MB peak
A
24 hours
9
Q
When does CK-MB return to normal
A
2-3 days
10
Q
LD Flip (MI)
A
Normally LD2>LD1
Flip LD1>LD2
11
Q
Why is total LD nonspecific for MI?
A
Hemolysis increases LD1
12
Q
A
