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MCQ 12. ECG in ACS

Q. Which of the following is true about NSTEMI?
A. Normal ECG (electrocardiogram) does not rule out ACS.
B. Patients with normal or abnormal ECG have same prognosis
C. >0.2 mV ST depression should be present for diagnosis
D. All are correct

Ans: A. Normal ECG (electrocardiogram) does not rule out ACS.

Explanation

Normal ECG (electrocardiogram) carries a favorable prognosis but does not rule out ACS.
Nearly 50 % of patients presenting with UA (unstable angina)/NSTEMI (non ST-elevation myocardial infarction) have a normal or unchanged ECG.
UA/NSTEMI: New T wave inversions >0.2 mV and ≥0.05 mV ST depressions are suggestive.
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