Sleep Pathways Guild • Separate EKG lab

EKG Lab

Practice PSG-style rhythm recognition with a larger strip view, cleaner examples, and quick case navigation.

Cases

Current case

Page accuracy

Completed here

EKG case

Cardiac rhythm recognition for the sleep lab

Clue:

Lead II teaching strip

Use the choices above after you read the rhythm strip.

25 mm/s10 mm/mVLead II

Code-drawn teaching strip showing AV dissociation. This example is not part of the scored rhythm drill.

25 mm/s 10 mm/mV Lead II example

$AI-generated teaching rendering showing a third-degree AV block complete heart block example$

AI-generated rendering: This original example is included only as a visual teaching aid for AV dissociation and is not part of the scored drill.

Reference materials for more details: review the current AASM Scoring Manual and Sleep Medicine Pearls, 3rd edition, Chapter 15.

Jump straight to representative strips when you want a cleaner visual reference before drilling.

Code-drawn strips Jump to case

Start with the overall rhythm pattern before using the answer choices above. Use the review button to jump straight to rhythms you missed.

Focus: recognize the rhythm, document the context, and know when patient assessment or escalation matters.

Look for	Why it matters
Rate and regularity	Fast, slow, and irregular patterns narrow the differential quickly.
P waves and PR pattern	Helpful for sinus rhythm, junctional rhythms, and AV blocks.
QRS width and timing	Early wide beats, broad tachycardias, and ventricular escape patterns stand out here.
Pause or dropped beat	Important when distinguishing sinus pause, AV block, and artifact.

Practice tip: Say it out loud before answering: regular or irregular, narrow or wide, P waves yes or no, pause yes or no.