Which factors indicate a low risk for acute coronary syndrome (ACS) in unstable angina?

Updated: Oct 01, 2020
  • Author: Walter Tan, MD, MS; Chief Editor: Eric H Yang, MD  more...
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Answer

A low likelihood of ACS includes the absence of high- or intermediate-likelihood features and the presence of any of the following:

  • Chest pain classified as probably not angina

  • Chest discomfort reproduced by palpation

  • T-wave flattening or inversion of less than 1 mm in leads with dominant R waves

  • Normal ECG findings


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