ECG library
Sinus tachycardia
introA 66-year-old with fever and hypotension on the medical ward.
25 mm/s · 10 mm/mV · synthetic tracing
100%
Calipers:2000 ms50.0 small boxes30 bpm if R-RDrag the orange markers. One small box = 40 ms.
Key findings
- Rate above 100 with sinus P waves
- Narrow QRS
- Rate marches with the underlying cause
Learning points
- Sinus tachycardia is a symptom: fever, pain, hypovolemia, sepsis, PE, anemia, withdrawal.
- Treating the rate instead of the cause is the classic ward error.
Connected