This app shows you a random ECG (IIIIIIaVRaVLaVF) and you need to estimate the angle of the electrical heart vector.

You have three attempts to guess it within 10 degrees and after 3 unsuccessful ones you can also reveal the solution.

Small fun program to play on the way to work or to re-fresh your skills. For medic students nurses and people who love a bit geometry!

If you want to measure your own ECG and analyse it then visit:

http://www.attys.tech