ECG
RHYTHM LAB
EDUCATION ONLY

ONE STRIP. THREE CALLS.

Read the rhythm.

Build recognition, one tracing at a time.

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ACCURACY
0 ↗
CASE STREAK
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COMPLETED
OVERALL MASTERY 0 / 16 CLEARED · ACCURACY —
A rhythm counts as cleared once you call it correctly twice in a row. Progress saves on this device and syncs to your account when you're signed in.
SYNTHETIC LEAD II CASE 001 ✓ Checked  |  10 s strip
25 mm/s · 10 mm/mV   Small box = 40 ms

↔ Scroll the strip to inspect every beat

CALIPER MEASUREMENT — DRAG THE RED LEGS
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INTERVAL
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SECONDS
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SMALL BOXES (1 mm)
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LARGE BOXES (5 mm)
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HEART RATE IF THIS IS R–R

STRIP MEASUREMENTS

HR ··
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PR ··
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QRS ··
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QT ··
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Your interpretation

0 of 3 selected
01Underlying rhythm or conduction pattern
02Isolated PVCs?
03AV block?
Choose one answer in each section.

THIS SESSION

Progress

Saved on this device and, when you're signed in, synced to your account — pick up where you left off on any device.

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ACCURACY
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BEST STREAK
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CASES COMPLETED

Rhythms to revisit

Nothing missed yet — your misses will collect here.

RECOGNITION ONLY

Field guide

The recognition clues for every rhythm in the library. Rate, regularity, P waves, intervals, relationship.

RhythmRateClues