Essential Biochemistry - Organ Function Tests (Section 4 - No. 38)
The major advantage offered by myoglobin as a serum marker for myocardial injury is that it is released:
Early from damaged cells as compared to other cardiac markers
Late from damaged cells as compared to other cardiac markers
At the same time as other cardiac markers
Never, it is not a marker for myocardial injury
Explication
Myoglobin is released earlier than other cardiac markers.