Student learning toolCreated by: Champsedine Arevalo, MAN, RN, EMT
Normal

Sinus Tachycardia

Sinus rhythm above 100 bpm — usually a response to an underlying cause.

LEAD II · 25 mm/sSinus Tach

Characteristics

Rate
100–160 bpm
Rhythm
Regular
P wave
Present, may merge with T at fast rates

Common causes

  • Pain
  • Fever
  • Hypovolemia
  • Anemia
  • Hypoxia
  • Sepsis
  • PE
  • Anxiety
  • Stimulants

ACLS treatment

  1. 1Treat the underlying cause. Do not treat the rate itself.