Grade 4 Neonatal Sinus Tachycardia, AE

**Semantic type:** Finding

**Definition:** A sinus tachycardia adverse event in a newborn characterized by life-threatening consequences; requiring urgent major care changes.

**Synonyms:** - Grade 4 Neonatal Sinus Tachycardia - Grade 4 Neonatal Sinus Tachycardia, Adverse Event