Table 1. . Time course of biomarker response in myocardial infarction.

Markers	Onset	Peak	Duration
Troponin	3–12 h	18–24 h	10 days
Creatine kinase (total and MB)	3–12 h	18–24 h	36–48 h
Lactate dehydrogenase	6–12 h	24–48 h	6–8 days
Myoglobin	1–4 h	6–7 h	24 h