Clinical Trials

Inclusion Criteria:

1. 18+ years of age (at least 18).
2. Admitted to emergency department for chest pain.
3. Being considered by the treating clinician for admission for cardiac testing.

Exclusion Criteria:

1. Ischemic changes on the electrocardiogram not known to be old as determined by the treating clinician in real time.
2. Elevated cardiac troponin (cTn) above the 99th percentile reference limit.
3. Known coronary artery disease as defined by consensus guidelines on risk stratification studies for ED patients with potential ACS (≥ 50% stenosis on cardiac catheterization; prior electrocardiographic changes indicative of ischemia, e.g., ST-segment depression, T-wave inversion, or left bundle branch block; perfusion defects or wall motion abnormalities on previous exercise, pharmacological, or rest imaging studies; previous documentation of acute myocardial infarction; or, if no records are available, patient self-report of coronary artery disease).
4. Cocaine use within the previous 72 hours by clinician history.
5. Pregnancy.
6. Referral to the emergency department by a personal physician for admission.
7. Patients who indicate that a hospital different than the site hospital is his or her "hospital of choice" in the event of a return ED visit.
8. Patients undergoing medical clearance for a detox center or any involuntary court or magistrate order.
9. Homelessness, out-of-town residence or other condition known to preclude follow-up.
10. Patients in police custody or currently incarcerated individuals.
11. Patients who have, in their clinician's best judgment, major communication barriers such as visual or hearing impairment or dementia that would compromise their ability to give written informed consent (or use the decision aid).