Which statement about NSTEMI on ECG is correct?

Study for the Medical Council of Canada Qualifying Examination (MCCQE) I. Engage with flashcards and multiple-choice questions with detailed feedback. Prepare confidently!

Multiple Choice

Which statement about NSTEMI on ECG is correct?

Explanation:
NSTEMI is defined by myocardial infarction without ST-segment elevation on the ECG. In NSTEMI, the ECG may show ST-segment depression or T-wave inversion, or even be normal early on; ST elevations are the hallmark of STEMI, not NSTEMI. Q waves can appear after infarction but are not required, and NSTEMI is not limited to T-wave inversion alone. So the statement that NSTEMI lacks ST-segment elevation best fits the typical ECG pattern of NSTEMI.

NSTEMI is defined by myocardial infarction without ST-segment elevation on the ECG. In NSTEMI, the ECG may show ST-segment depression or T-wave inversion, or even be normal early on; ST elevations are the hallmark of STEMI, not NSTEMI. Q waves can appear after infarction but are not required, and NSTEMI is not limited to T-wave inversion alone. So the statement that NSTEMI lacks ST-segment elevation best fits the typical ECG pattern of NSTEMI.

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