How often should cardiac troponins be measured after the initial level is obtained at presentation?

Updated: May 07, 2019
  • Author: A Maziar Zafari, MD, PhD, FACC, FAHA; Chief Editor: Eric H Yang, MD  more...
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Answer

Serial measurement of cardiac troponins after the initial level is obtained at presentation, 3 to 6 hours after symptom onset, is recommended. If initial levels are negative, additional measurements beyond the 6-hour mark should be obtained.

The graph below demonstrates the timing of release of various cardiac biomarker peaks after the onset of MI. [55]

Timing of release of various cardiac biomarker pea Timing of release of various cardiac biomarker peaks after the onset of myocardial infarction

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