What is the first line of assessment in suspected unstable angina?

Updated: Oct 01, 2020
  • Author: Walter Tan, MD, MS; Chief Editor: Eric H Yang, MD  more...
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The first line of assessment in any patient with suspected unstable angina is the 12-lead ECG, which should be obtained within 10 minutes of the patient’s arrival in the ED. The diagnostic accuracy of an ECG is enhanced if a prior tracing is available for comparison. Serial ECG recordings taken every 15-30 minutes are recommended if the patient’s chest pain continues and ECG changes are not noted in the initial or subsequent recordings. [34]

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