The EKG Grid
Learning topic
EKGs that feel clinical, not abstract.
This ECG-first experience blends fast-loading strips, interval highlighting, and a repeatable interpretation approach so learners can move from recognition to decisions.
Lessons
Published lessons in EKGs.
Choose a section to explore the latest approved modules.
Foundations
Intervals, landmarks, and normal patterns.
Depolarization, Repolarization, and Electrical Vectors
Loading conduction animation…
Systematic approach
A quick EKG checklist that scales.
- Rate: fast, slow, or normal for the situation
- Rhythm: regular vs irregular, with or without clear P waves
- Intervals: PR, QRS, and QT lengths before jumping to labels
- Morphology: P, QRS, ST, and T-wave shapes and transitions
- Clinical fit: does the signal explain the patient in front of you
Rate and rhythm first
Before anything else, decide if the rhythm is regular and if the rate matches the clinical picture.
Intervals tell a story
PR, QRS, and QT durations help you spot conduction issues quickly and explain what you see.
Morphology beats memorization
Look at P waves, QRS width, and ST/T shape changes so patterns become intuitive, not forced.
Always tie to the patient
An EKG is a clinical tool. Pair waveform clues with symptoms, vitals, and context.
Rhythm Recognition
Practice fast pattern recognition with preset rhythms and clean interval highlights.
Intervals and Morphology
Explore PR, QRS, ST, and QT changes with guided highlights and caliper-ready strips.
Case-Based Interpretation
Connect signal changes to clinical stories so interpretation translates to decisions.