How often do you see an ECG that is just a little off? Maybe the T wave is flat, oddly-shaped or inverted. Maybe the ST segment is coved, very minimally-depressed or shows some J point elevation.

The QT interval is the time from the beginning of the QRS complex, representing ventricular depolarization, to the end of the T wave, resulting from ventricular repolarization. The normal QT ...

One of the longest-lasting and strongest June heat waves in years is revving up across the Midwest, Mid-Atlantic and Northeast. The most intense heat first focuses on the Great Lakes, Ohio Valley ...