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Characteristics of biochemical markers in acute MI
| Molecular weight | Hours to first increase | ||||
| Marker | Localization | (Da) | after infarction | Mean hours to peak | Return to baseline (days) |
| CK-MB | Cytosolic | 86,000 | 3-10 | 10-24 | ∼ 3 |
| Troponin T | 6% Cytosolic | 37,000 | 4-12 | 12-48 | 5-15 |
| Troponin I | 3% Cytosolic | 24,000 | 4-12 | 10-24 | 5-10 |
