TIMI risk score for UA/NSTEMI
14-day risk of death, MI, or urgent revascularization in unstable angina or NSTEMI.
Inputs
Age 65 or older
3 or more CAD risk factorsFamily history, hypertension, high cholesterol, diabetes, current smoker
Known CAD (stenosis 50% or more)
Aspirin in the past 7 days
2 or more anginal episodes in 24 h
ST deviation of 0.5 mm or more
Positive cardiac marker
Worked calculation
Your values are highlighted.
- Points
When to use
- Confirmed or suspected UA/NSTEMI.
Pearls and pitfalls
- Not designed for undifferentiated chest pain; HEART is better there.
Why use
Guides early invasive versus conservative strategy.
| Criterion | Points |
|---|---|
| Age 65 or older | +1 |
| 3 or more CAD risk factors | +1 |
| Known CAD (stenosis 50% or more) | +1 |
| Aspirin in the past 7 days | +1 |
| 2 or more anginal episodes in 24 h | +1 |
| ST deviation of 0.5 mm or more | +1 |
| Positive cardiac marker | +1 |