CK-MB levels will return to normal within which length of time after a myocardial infarction (MI)?
a. 2 to 6 hours
b. 6 to 12 hours
c. 12 to 24 hours
d. 3 days
a. 2 to 6 hours
b. 6 to 12 hours
c. 12 to 24 hours
d. 3 days