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Table 4 Definition of possible ACS

From: The HEART score in predicting major adverse cardiac events in patients presenting to the emergency department with possible acute coronary syndrome: protocol for a systematic review and meta-analysis

Possible ACS Symptoms of ACS present (chest, arm, or jaw pain; shortness of breath; dizziness; nausea; or sweating) or assessing clinician considering ACS as a possible diagnosis, and initial diagnostic workup includes both an ECG and troponin measurement.