Troponin is the earliest and most sensitive marker for heart attack, with levels above 0.04 ng/mL indicating MI. CK, CK-MB, myoglobin, and LDH are other cardiac enzymes that support the diagnosis.
Here's a key thing to know about myocardial infarction for the nclex troponin lab value is one of the earliest and most sensitive lab markers for a heart attack or an MI. So anytime you see a value that's greater than 0.04 nanograms per mil, that is abnormal, and it could be a sign of a heart attack or a myocardial infarction. So troponin is what we're going to look at. We can also check the CK or ckmb, myoglobin, and LDH in order to assess for a MI or a myocardial infarction. If you're struggling with pharmacology in nursing school, be sure to check out the Pharmacology Study System inside the nursing SOS shop.
