Here's how it works.
The app has 150 12-lead ECGs that were taken from actual patient encounters.
The user of the app is given a brief scenario. For example, a 95 year old female with a chief complaint of altered level of consciousness.
You can tap on the little magnifying glass to enlarge and expand the 12-lead ECG.
Once you think you know the answer you tap the ANSWER button, the card flips, and the answer text comes up along with (in most cases) an ANSWER graphic.
In this case we are dealing with a bifascicular block (right bundle branch block and left anterior fascicular block) as evidenced by the supraventricular rhythm with a QRS duration > 120 ms, the RBBB morphology in lead V1 and a left axis deviation (QRS complexes positive in lead I and negative in leads II and aVF).
The 12-Lead ECG Challenge app strongly emphasizes acute STEMI and the STEMI mimics (including benign early repolarization, left ventricular hypertrophy, paced rhythm, left bundle branch block, pericarditis, left ventricular aneurysm, hyperkalemia, hypothermia, WPW and Brugada) so it's a great study tool to help paramedics minimize false positive cardiac cath lab activations.
For example, here's an answer graphic that demonstrates the relevant findings for a patient whose 12-lead ECG was consistent with pericarditis.
The app is priced at $4.99, a bargain when you consider that online 12-lead ECG tutorials start at around $45.00. Our goal was to appeal to a world-wide market and make it affordable for everyone.
You can download it here:
If you like the app (or even if you don't) feel free to leave a review, here or at the Android Market or Apple Store.