RhythmDockECG RHYTHM LAB
Sinus Tachycardia
Sinus rhythm at an increased rate.
Generated six-second Lead II example · 120 bpm target rate · not a patient recording.
- Typical rate
- >100 bpm
- Regularity
- Regular
- P waves
- Upright; may merge with preceding T
- PR interval
- 120–200 ms
- QRS
- Narrow, <120 ms
What to look for
Look closely for a consistent P wave before each QRS.