What are the objectives of lab testing and imaging studies in myocardial infarction (MI, heart attack)?

Updated: May 07, 2019
  • Author: A Maziar Zafari, MD, PhD, FACC, FAHA; Chief Editor: Eric H Yang, MD  more...
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The objectives of laboratory testing and imaging include the following:

  • To determine the presence or absence of myocardial infarction (MI) for diagnosis and differential diagnosis (point–of-care testing and testing in central laboratory of cardiac troponin levels)

  • To characterize the locus, nature (ST-elevation MI [STEMI] or non–ST-elevation MI [NSTEMI]), and extent of MI (ie, to estimate infarct size)

  • To detect recurrent ischemia or MI (extension of MI)

  • To detect early and late complications of MI

  • To estimate the patient's prognosis

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