Level 1

Rhythms at a glance

There are several important and sometimes life-threatening rhythms that you should be able to recognize at a glance. Learn how to identify these rhythms instantly.
1 Lesson (6m 03s), 1 Quiz
Level 2

Rapid and regular and broad

Here you learn how to differentiate between the different forms of regular broad complex tachycardias (the QRS complexes occur at regular intervals), a key skill in rhythm analysis.
1 Lesson (8m 03s), 1 Quiz
Level 3

Rapid and regular and narrow

Learn about the different causes for regular narrow complex tachycardias and some valuable tricks on how to differentiate between them. Some of these tricks might even end the tachycardia entirely.
1 Lesson (14m 20s), 1 Quiz
Level 4

The P waves are not normal

P waves can do funny things. They can be absent, their orientation can be abnormal, and they can show up where you wouldn’t normally expect them. Learn what that tells us about the cardiac rhythm.
1 Lesson (14m 53s), 1 Quiz
Level 5

Too many P waves

Are you counting more P waves than QRS complexes on an ECG? This chapter will teach you the pearls and pitfalls when it comes to counting the Ps.
1 Lesson (7m 07s), 1 Quiz
Level 6

High degree AV blocks

When there are more P waves than QRS complexes, high degree AV block might be at play. Learn what that that means and what forms of blocks there are.
1 Lesson (15m 41s), 1 Quiz
Level 7

The basic rhythm and its interruptions

In this level, you’ll learn what we mean by “basic rhythm,” in what ways the basic rhythm can be interrupted, and what to make of it.
1 Lesson (5m 38s), 1 Quiz
Level 8

Unexpected beats

In this module you’ll learn everything you need to know about premature beats or ectopic beats as they are also called.
1 Lesson (15m 24s), 1 Quiz
Level 9

Pauses, Rhythm Cheat Sheet, and AV dissociation

Have you ever seen pauses on the ECG? In this module, we’ll teach you when to worry and when to keep cool.
3 Lessons (22m 04s), 1 Quiz
Level 10


Differentiate between normal and abnormal pacemaker functions and learn to recognize the different pacemaker types used today.
2 Lessons (16m 36s), 1 Quiz