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Equations

Scores

TIMI Risk Score for UA/NSTEMI

Age ≥ 65 years? Yes +1
> 3 Risk Factors for CAD? Yes +1
Known CAD (stenosis ≥ 50%)? Yes +1
ASA Use in Past 7d? Yes +1
Severe angina (≥ 2 episodes w/in 24 hrs)? Yes +1
ST changes ≥ 0.5mm? Yes +1
+ Cardiac Marker? Yes +1
Score points

Risk factors for CAD : Family history of CAD, Hypertension, Hypercholesterolemia, Diabetes, or Current Smoker (thanks to Jeff Geske at Mayo for this update!)

The TIMI Risk Score for Unstable Angina/Non-ST Elevation MI PubMed ID 10938172