ECG RHYTHM LAB

Supraventricular Tachycardia

A simplified regular, narrow-complex SVT pattern. SVT is a broad rhythm category.

Generated six-second Lead II example · 180 bpm target rate · not a patient recording.

Typical rate

Often 150–250 bpm

Regularity

Very regular

P waves

Often hidden in or near QRS

PR interval

Often not measurable

QRS

Usually narrow

What to look for

Very regular, rapid narrow complexes with no clearly separate preceding P waves.

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