Inappropriate Sinus Tachycardia by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding of supraventricular tachycardia involving the sinus node in which a patient has an atypically high heart rate which cannot be explained by factors such as fever, exercise, hypovolemia, etc.

**Synonyms:** - Inappropriate Sinus Tachycardia - Inappropriate Sinus Tachycardia by EKG Finding