Bree's EKG Shows a Normal QT Interval of 525 Milliseconds

Bree has a normal axis of positive 45 degrees. Her QRS interval is 80 milliseconds, and her QTC interval is 525 milliseconds. She has no right ventricularhypertrophy or left ventricular hypertrophy on scanning. That's highly suggestive of a congenital long QT syndrome,. also known as a channel apathy.