TIMI Score Calculator for UA/NSTEMI

Written by Great Medico

Updated September 24, 2026 •2 min read

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Cardiovascular numbers become useful only when the equation behind them is clear. TIMI Score Calculator for UA/NSTEMI turns the specific measurements in this tool into a focused hemodynamic or risk estimate.

What this calculator does

TIMI Score Calculator for UA/NSTEMI uses Age ≥65 years, ≥3 CAD risk factors, Known CAD (stenosis ≥50%), Aspirin use in past 7 days, ≥2 angina episodes in past 24 h, ST deviation ≥0.5 mm, and Elevated cardiac markers to calculate TIMI UA/NSTEMI score. It is built around the exact fields displayed in this plugin rather than a generic version of the topic. Cardiovascular formulas are sensitive to measurement technique and clinical context. A mathematically correct output can still be misleading if the input was obtained under a different physiologic condition, with a different assay, or outside the population for which the score was developed.

How to use it

Complete the requested fields, including Age ≥65 years, ≥3 CAD risk factors, Known CAD (stenosis ≥50%), Aspirin use in past 7 days, ≥2 angina episodes in past 24 h, and ST deviation ≥0.5 mm, then finish the remaining items shown in the calculator. Confirm that each yes/no, category, date, or score option is applied exactly as labeled. When the formula combines measurements, use values obtained under the same assessment or physiologic conditions whenever possible.

How the calculation works

The TIMI UA/NSTEMI score totals seven one-point domains: age at least 65, at least three coronary risk factors, known coronary stenosis, aspirin use in the prior week, at least two anginal episodes in 24 hours, ST deviation, and elevated cardiac markers. The result ranges from 0 to 7 and is intended as the historical TIMI risk score.

Example

Using the sample values prefilled in this calculator, the primary result is 0 points (TIMI UA/NSTEMI score). This worked example shows how the plugin’s own default inputs flow through the implemented method; replace them with the correct patient, laboratory, imaging, or personal values before interpreting a result.

How to interpret the result

Read the output as timi ua/nstemi score generated by this specific formula or score. The number is most useful when compared with the clinical context and, when appropriate, serial measurements or the current guideline pathway for the condition. A boundary value should not be overinterpreted as a sudden change in physiology.

Limitations and notes

Cardiovascular formulas are sensitive to measurement technique and clinical context. A mathematically correct output can still be misleading if the input was obtained under a different physiologic condition, with a different assay, or outside the population for which the score was developed.