inc markers Flashcards
Which cardiac enzyme is the first to rise after a myocardial infarction?
Myoglobin
Myoglobin rises within 1-2 hours after the onset of a myocardial infarction.
What is the peak value time frame for CK-MB?
16-20 hours
CK-MB is useful for looking for reinfarction as it returns to normal after 2-3 days.
How long does it take for troponin T to return to normal after a myocardial infarction?
7-10 days
Troponin T remains elevated for a longer duration compared to other enzymes.
Fill in the blank: Myoglobin returns to normal in _______.
1-2 days
What is the time frame for CK to begin to rise after a myocardial infarction?
4-8 hours
CK levels rise within 4-8 hours after myocardial injury.
What is the peak value time frame for AST?
36-48 hours
AST is another enzyme that rises after myocardial infarction, peaking later than many others.
True or False: LDH returns to normal within 3-4 days after a myocardial infarction.
False
LDH takes longer, returning to normal in 8-10 days.
What is the peak value time frame for myoglobin?
6-8 hours
How long does CK remain elevated after a myocardial infarction?
3-4 days
Fill in the blank: Troponin T begins to rise after _______.
4-6 hours
What is the significance of CK-MB in relation to myocardial infarction?
Useful to look for reinfarction
CK-MB levels returning to normal after 2-3 days can indicate a new myocardial event.
What is the peak value time frame for LDH?
72 hours
Fill in the blank: AST begins to rise after _______.
12-24 hours
