What are reasons for troponin elevation?

Myocardiac injury AMI (atherosclerotic plaque/thrombossi) Myocardial injury due to ischemia from O2 decreased (coronary artery spasm, coronary embolism, bradyarrhythmia, respiratory failure, anemia) Other causes of MI (cardiac conditions [carditis, HF, cath, defibrillator...] systemic [sepsis, CKD, stroke, PE, infiltrative disease, chemo, strenous exercise])