Ecg on ECG Library – LITFL Basics

Top 20 Online ECG Courses

Sun, 21 Dec 2025 00:00:00 +0000

Difficult to master (and even harder to teach), the area of ECG interpretation has spawned an entire learning industry devoted to the topic. We take a Google deep dive to evaluate you 20 of the the best #FOAMed and paid ECG courses available online.

ECG Course selection criteria

Inclusion criteria: The ECG course had to be

in the English language
readily accessible online, without requiring a formal application process
found within the first 50 organic Google search results for “ECG/EKG course online” including geographical permutations for UK, US, Canada, New Zealand, or Australia
a structured course providing students with a defined learning path, not just a series of references/examples and practice cases.
provide a breadth of learning from basic to advanced applicable to the majority of health care providers such nurses, paramedics, EMT, PA, physicians

Notable exclusions:

Misplacement of V1 and V2

Wed, 15 May 2024 00:00:00 +0000

Misplacement of V1 and V2: Don’t let this mistake mess up your ECG interpretation!

The proper location of V1 and V2 have not changed in many decades. They are located in the 4th intercostal space, just right and left, respectively, of the sternum. It is fairly easy to determine this spot using the angle of Louis as a landmark.

However, V1 and V2 were being misplaced pretty much right after being invented. This error in lead positioning usually produces trivial changes in the QRS pattern in those leads, and thus no real change in ECG interpretation. But certain erroneous ECG patterns can be generated, and it is important to recognize lead misplacement as a potential cause.

ST depression does not localise

Tue, 03 May 2022 00:00:00 +0000

I have had a few people ask me about the following statement from ECG Case 121:

“The reciprocal ST depression seen in leads III and aVF (in high lateral infarction) is often mistaken for inferior ischaemia. One must recall that ST depression does not localise, and such ST depression should be assumed to be a reflection of ST elevation in mirror image leads.”

Buttner, Aslanger: ECG Case 121

“ST depression does not localise” – what does this mean?

The term “localise” has two relevant interpretations here.