In Myocardial Infarction Which Enzyme Elevated First?

Troponins are the most widely recognized and important cardiac enzymes used in the diagnosis of acute myocardial ischemia in modern medicine. The majority of patients with an acute MI will have elevation in troponins within 2 to 3 hours of arrival at the emergency department, versus 6 to 12 hours with creatine kinase.

Which cardiac enzyme rises first in MI?

Myoglobin levels

Myoglobin is found in cardiac and skeletal muscle. It is released more rapidly from infarcted myocardium than troponin and CK-MB and may be detected as early as two hours after an acute myocardial infarction.

Which enzyme is present after myocardial infarction?

Your doctor will most likely test for an enzyme called troponin. It goes into your blood soon after a heart attack. It stays at high levels even after other enzymes have gone back to normal.