Sinus Tachycardia

Sinus Tachycardia

Sinus Tachycardia

Sinus tachycardia is a regular cardiac rhythm in which the heart beats faster than normal and results in an increase in cardiac output. While it is common to have sinus tachycardia as a compensatory response to exercise or stress, it becomes concerning when it occurs at rest.


Heart Rate: 101-150/min

Rhythm: Sinus Tachycardia

P wave: present

QRS Complex: Regular (.12-.20sec.)

Check the Patient:

  • Level of Consciousness 
  • BP 
  • Chest Discomfort or Shortness of Breath
  • Saturation: less than 92% 
  • HR above 150/min (SVT present)

Stable Treatment Plan: 

  • Consider Oxygenation
  • Monitor and Continue Observing
  • Obtain IV/IO Access
  • The presence of tachycardia at rest could be the earliest sign of serious pathology. Thus, it is crucial for the clinician to rapidly identify the underlying cause of tachycardia and determine if it indicates urgent evaluation and/or treatment.


  • Fever
  • Stress
  • Exercise
  • Hypothyroidism
  • Anemia
  • Pain
  • Low Blood Pressure 
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