II. Criteria: Risk Factors (1 point for each positive risk factor)
- EKG with ischemia or new infarction
- ST Elevation >1mm or pathologic Q Waves in 2 or more contiguous leads
- Criteria not met if changes were present on prior EKG
- Systolic Blood Pressure <100 mmHg
- Hypotensive reading at any point during the emergency department stay
-
Congestive Heart Failure signs
- Rales heard above the bases bilaterally
-
Chest Pain worse than baseline Angina
- Known unstable Ischemic Heart Disease or
- New post-infarction Angina or
- Angina after a coronary revascularization procedure or
- Pain similar to prior Myocardial Infarction
III. Interpretation (with risk of major cardiac event in subsequent 30 days)
- Very Low Risk (<1 %)
- No risk factors
- Low Risk (<5%)
- Normal EKG and 1 or less risk factor
- Moderate Risk (7%)
- Normal EKG and 2 or more risk factors or
- Suspected ischemia on EKG and 1 or less risk factors
- High Risk (18%)
- Suspected MI on EKG or
- Suspected ischemia on EKG and 2 or more risk factors