12-Lead ECG Challenge

12-Lead ECG practice that will sharpen your ECG interpretation skills.

Learn to recognize STEMI, mimics, electrolyte imbalances and more. This app includes 180 clinically obtained, field and hospital 12-lead ECGs. If you’re responsible for cath lab activation, this is a great tool for teaching you how to prevent false activation.

$5.99

Highlights of 12-Lead ECG Challenge

Review 180 clinically obtained, field & hospital 12-lead ECGs.

Detailed rationales include the diagnosis and a graphical reference showing key points on the ECG.


View acute STEMI, STEMI mimics, electrolyte imbalances and more.

Expand and move ECGs for easy viewing on any device.

Improve your 12-Lead ECG interpretation:

  • Review 180 clinically obtained, field and hospital 12-lead ECGs.
  • Explore ECGs that are presented with real patient complaint scenarios.
  • Expand and move ECGs for easy viewing on any device.
  • Receive detailed rationale answers that include the diagnosis and a graphical reference showing key points on the ECG.
  • Choose 5, 10 or 20 at a time; exclude the ones you’ve already mastered.
  • View acute STEMI, STEMI mimics, cath lab activation recommendations, electrolyte imbalances, and other cardiac and atypical presentations and anginal equivalents.

The 12-Lead ECG Challenge was developed by Tom Bouthillet, electrocardiography expert and popular ECG blogger at EMS 12-Lead

How to Use the 12-Lead ECG Challenge App

Each case begins with the patient complaint and the real-life ECG. Examine each tracing in detail until you come to your own diagnostic conclusion. Click on the “Show Answer” button to see if you’re correct! 

You’ll get a detailed analysis of the patient’s condition, with highlights superimposed on the ECG to show you the areas you should focus on.

To maximize learning, we recommend writing down your observations and conclusions before clicking the “Show Answer” button.

If the answer doesn’t match what you wrote down, take notes on what details you missed that would have helped you get the correct interpretation. And don’t exclude an example until you’re sure you understand it. Happy interpreting!

As the medical director of two paramedic schools I know that my students find the best value with Limmer Education.  Florida just became a registry state so tools like this have become extremely valuable. 

Dr. Peter Antevy
Medical Director

As a program director I buy bundles at a time and the price value is great. The material has been instrumental in preparing my students for the NREMT exam... The array of apps available, the ease of use on a mobile device and computer, the price, the customer support, and overall quality is top notch. I will continue to use the LC-Ready family of apps for years to come. 

Juston Arnone
Chief of Medical Services

I used it for flight paramedic certification. I continue to use it to evaluate my knowledge in 12 lead. I regularly recommend paramedic students to purchase your products.

Carrie C.
Paramedic

Thank you for your products and your knowledge. I took my paramedic exam again yesterday and passed. I can't say enough about Limmer Education.

John C.
Paramedic
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