TIMI Score Calculator (UA/NSTEMI)
How do you remember the criteria for the TIMI Score?
Use the mnemonic: “AMERICA”
TIMI Score Parameters – Mnemonic: AMERICA
| Letter | Parameter | Explanation |
|---|---|---|
| A | Age ≥ 65 years | Older age increases cardiac risk |
| M | Markers (cardiac) | Elevated troponin or CK-MB |
| E | ECG changes | ST deviation ≥ 0.5 mm |
| R | Risk factors ≥ 3 | HTN, DM, smoking, FHx of CAD, hyperlipidemia |
| I | Ischemia (angina ≥2 episodes in 24h) | Frequent angina shows instability |
| C | CAD known (≥50% stenosis) | History of coronary artery disease |
| A | ASA use in past 7 days | Recent aspirin use without effect indicates risk |
How TIMI Score is Calculated and Interpreted
The TIMI score assigns 1 point for each criterion met (maximum of 7 points). The higher the score, the higher the risk of adverse cardiac events (death, myocardial infarction, or urgent revascularization) within the next 14 days.
- Score 0–2: Low Risk (5–8%)
- Score 3–4: Intermediate Risk (13–20%)
- Score 5–7: High Risk (26–41%)
This tool helps guide decisions on hospitalization, intensive monitoring, and early invasive strategies.