TIMI Risk Score Calculator (UA/NSTEMI)

Calculate the TIMI risk score for unstable angina and non-ST-elevation myocardial infarction (UA/NSTEMI).

Age ≥65 years

≥3 CAD risk factors (family history, HTN, hypercholesterolaemia, DM, active smoker)

Prior coronary stenosis ≥50%

Aspirin use in past 7 days

≥2 anginal events in past 24 hours

ST-segment deviation ≥0.5 mm on presenting ECG

Positive serum cardiac marker (troponin or CK-MB)

How to Use the TIMI Risk Calculator

Select 'Yes' for each of the 7 risk factors present.
Each 'Yes' adds 1 point.
Click 'Calculate' to see the score and 14-day event risk.

Cas d'utilisation

•Risk stratification in UA/NSTEMI.
•Guiding early invasive vs conservative strategy.
•Predicting 14-day cardiovascular event rate.

Formule

TIMI = sum of 7 binary risk factors (0 or 1 each). Score 0–7. Higher score = higher 14-day event risk.

Questions fréquemment posées

What is the TIMI risk score?

The TIMI (Thrombolysis in Myocardial Infarction) risk score for UA/NSTEMI uses 7 variables to predict 14-day all-cause mortality, new or recurrent MI, or severe recurrent ischemia requiring revascularisation.

How is the TIMI score interpreted?

Score 0–2: Low risk (~5% event rate). Score 3–4: Intermediate risk (13–20%). Score 5–7: High risk (26–41%).

Medical disclaimer

This calculator is for educational purposes only. It does not replace professional medical evaluation. Always consult a qualified healthcare provider for clinical decisions.