Results: Average arterial lactate level in AMI patients on admission were 1, 98±1, 28 mmol / L, well correlated with age, heart rate, systolic blood pressure, Killip degree, TIMI score, left ventricular ejection fraction (LVEF), biomarker level, renal function and glucose level on admission. Predictability of arterial lactate level for cardiogenic shock or in-hospital mortality was similar to TIMI score and significantly better than other predictors.