Observed arrival · 2026-09-16

That ECG Test, for the Tracings That Fool Everyone

thatecgtest.com Observed source

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A free, account-free ECG interpretation assessment built from published 12-lead case collections.

Landing page captured for the 2026-09-16 issue.

Field notes

The assessment shows each tracing without history, troponin results, or a prior ECG, reproducing the limited-information setup described for its source study. The current collection contains 36 ECGs from McCabe 2013, a Journal of the American Heart Association paper identified by PMID 24096575. Results include accuracy, sensitivity, specificity, item-level comparison with study physicians, and a worked explanation for each tracing.

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