NavEP · Live lab

Live lab Spot it as it happens.

A schematic recording that scrolls in real time, as on the lab monitor. Choose an exercise, press Start, and call each finding the moment you see it. The run then pauses on that beat with calipers and the reason. The values change with every run.

Antegrade curveAH jump, echo, AV-node refractory period Retrograde curveRoute switch, VA block, adenosine

Where is the pathway?Five sites, from the delta wave and atrial sequence TachycardiaOverdrive pacing, PVC, adenosine, then the diagnosis

CTI ablationTypical flutter, RF, bidirectional block PV isolationEntrance and exit block, from AF or sinus rhythm

Antegrade curve

Drugs

Call it

Keyboard, sound and reduced motion

Space starts and pauses the run. Each call button shows its key; press it the moment you see the finding.
Beep sounds a short tone on each QRS, as on the lab monitor. Everything it marks is also on screen.
With reduced motion on, the recording does not scroll by itself: use the step button (Next train, or Skip 3 s) to move on.
A slower sweep (25 mm/s) shows more beats at once; a faster one (100 mm/s) spreads each beat out for measuring.
On the still strips under a finding, drag across a strip to measure an interval (on a touch screen, press Measure first). Labels shows or hides the names of the deflections.

Schematic, drawn for NavEP from the rules on the workflow, SVT and references pages; not a recording or a physiological simulation. Real signals are noisier, and the numbers in your lab will differ. Drug and RF timings are shortened so a run stays short.