By eHow Health Editor
Rate: (0 Ratings)
The QT interval on an EKG is the time it takes the cells in the lower chambers of the heart to discharge electrically and then recharge. If it takes longer than normal it is called long QT syndrome. Not everyone experiences symptoms. For those who are symptomatic they may experience, irregular heartbeats, fainting and possibly seizures. Long QT syndrome can be inherited or develop as a side effect from taking certain medications.
eHow Health Editor