What are the limitations of the ABCD2?

While the ABCD2 is highly validated, it should not replace clinical judgment. OpiCalc provides the latest evidence-based limitations for the ABCD2 to ensure safe bedside use and optimal diagnostic accuracy.

How does the ABCD2 compare to other Neurology scores?

The ABCD2 is a gold-standard diagnostic tool. OpiCalc provides side-by-side clinical guidance to help clinicians choose the most specific evidence-based tool for their patient's presentation.

Is the ABCD2 free to use?

Yes. OpiCalc provides the ABCD2 completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

OpiCalc

786 Clinical Tools

ABCD2 Score

ABCD2 Score: Predicts the 2-day risk of stroke after a Transient Ischemic Attack (TIA).

Clinical Features

Duration of Symptoms

Guidelines & Evidence

Clinical Details

Section 1

Evidence Summary

Section 2

Physiological Basis

Section 3

Practical Pearls

Section 4

Clinical Actions

Section 5

Validation Study

Section 6

Background

Last Comprehensive Review: 2026

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